Here is a list of characters in Asteroid In Love. Names are in western order.
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Earth Sciences Club
Mira Konohata
Cheerful and innocent.
Click to see Mira when she first met Ao.
- Voiced by: Tomoyo Takayanagi (JP), Lindsay Seidel (EN)
Despite she's never been the sharpest pencil of the box, Mira is very curious and is easily influenced by her surroundings. Because of this, she enjoys the company of people more intelligent than she is and the fact that her knowledge base is relatively wide but rather shallow.
Besides astronomy, her other passion is drawing manga.
- Adaptational Hairstyle Change: When she recalls her first meeting with Ao in the first chapter of the manga, her hair is rather similar to what she is in the Present Day, but without the sidetail. When adapted as the Kidroduction of the anime, she has that sidetail as well, making her a case of Hairstyle Inertia—the only difference is now she wears a star-shaped hairclip over the sidetail.
- Book Dumb: So bad that she needs make-up exams in her first trimester of high school. She is especially poor in anything mathematics-related, but she also needs make-up exams in English.
- Cheated Angle: Her hairpin. It's always on the right side of her head, but it can appear in the front or back as the author wants to.
- Cheerful Child: When she was a child, she has a cheerful disposition in life while being extremely curious. She doesn't change much as she grows up.
- Cosmic Motifs: The star is practically her trademark in the cast, with all her accessories—down to her linens—decorated with stars. This, of course, refers to her hobby, but also indicates her energetic personality.
- The Ditz: Several characters have bluntly call her dumb. For example, in response to her getting a cold, Mikage actually says "Idiots can catch a cold, I see," due to her subverting Idiots Cannot Catch Colds.
- First-Name Basis: Virtually everyone calls her by her first name. Mari even has to ask Mira to remind her what her last name is, and is surprised to hear that she's the younger sister of the Student Council President.
- Friend to All Children: She is very good with children. This is first seen in Chapter 22/Episode 7, and is lampshaded in Chapter 39, when the rest of the Earth Sciences Club notice the kids in a special event seem to like her a lot. Yuu vocally suspects whether Mira is actually One of the Kids, before she is shut up by Chikage.
- Geeky Turn-On: From the kidroduction and her recollection of the event as she drafts her Shiny Star Challenge entrance essay, it is clear that Ao gave her a very deep impression since Ao knew a lot about astronomy and is passionate about the field—or, in short, Ao was (and still is) an astronomy geek. Given Mira's feelings to her were at one point romantic since she mistook Ao for a boy, this indicates this trope is in operation.
- Genius Ditz: Her case of Character Development is more about intelligence, rather than resolve. She still has a ditzy aura around her, she genuinely got more knowledgeable in astronomy, eventually to Yuu's utter surprise.
- Genki Girl: She has endless enthusiasm for just about everything. Despite initially joining the Earth Sciences Club as an astronomy enthusiast, she becomes just as excited as Mikage about rocks and fossils, too.
- Goal in Life: To discover an asteroid with Ao.
- Hairstyle Inertia: Her hairstyle is the same now and the time she met Ao as a child. The only difference is a star-shaped hairpin.
- Hidden Depths: While she is introduced as a conventional Genki Ditz, eventually we get to see some hidden depths from her—she is extremely curious, and unlike most characters of that archetype, she is well-aware of her shortcomings.
- Idiots Cannot Catch Colds: Subverted. She catches a cold during the Hot Springs Episode, at which point Mikage lampshades this subversion.
- Important Hair Accessory: She wears a star-shaped hairpin, probably as a reminder of her Goal in Life (as well as her promise to Ao).
- Meaningful Name: Mira is named after a variable red giant star in the constellation Cetus and is Latin for "wonderful," mirroring how Ao sees her.
- Ms. Imagination: She is significantly more imaginative than the rest of the cast, often resulting in off-tangent Imagine Spots in relate to the issue on hand. A Running Gag in this series is that she needs to get fact-checked by the character who happens to be close by, be it Ao, Mikage, or even Moe.
- The Nicknamer: This is Played Straight when Moe mentions Mira's tendency to give others nicknames. Mira proceeds to give nicknames to everyone except Ao, which are used throughout the series.
- No Indoor Voice: Part of her Genki Girl package. In Chapter 2/ Episode 1, Moe has to apologize to Ao for this trope, since Mira pretty much shouted into Ao's class to invite Ao to have lunch together.
- Non-Uniform Uniform: Everybody else carries the school-issue blue tote to school; she uses a red backpack adorned with stars instead.
- Sequential Artist: Downplayed. She draws manga columns in the Earth Sciences Club's newsletter.
- Smarter Than You Look: Despite being somewhat of a cheerful ditz, she's genuinely very knowledgeable about astronomy especially as the series goes on, enough that she gets accepted into the very competitive Shining Star Challenge. Yuu comments on this during the thirty-fourth chapter, when she goes on for several in-universe minutes on the fundamentals of asteroid discovery. Since she always has a ditzy image around her, Yuu is so thrown off balance that the latter says Mira's being "cunning".
- Stellar Name: While in the Watsonian sense she probably is not intentionally named after the variable star in the constellation Cetus, in the Doylist view she's intentionally named after the star. This is because, right in the first chapter, the fact she shares a name with the star is an important point in the plot—her childhood promise is based on the fact that she has this while Ao's isn't.
- Sweet Tooth: At home, she considers a coffee with five sugars isn't good enough. Away she drinks a canned coffee that has as much sugar—by volume—as Coca-Cola.
- Tareme Eyes: Her droopy eyes symbolizes her naivety.
- Thinking Out Loud: She has a habit of voicing the lines when she draws manga in her room. Ao, who lives in the next room, once compares it to miming.
- Womanchild: At least she is thought to be this. When she shows she is very good with children, Yuu wondered aloud whether she is this, given her cheerful ditzy demeanor is rather child-like. Chika immediately shuts Yuu up.
- Vibrant Orange: Mira is an orange-haired girl with an energetic, curious, plucky, and impulsive demeanor. On top of that, she's paired with the blue-themed Ao.
Ao Manaka
Quiet but passionate.
Click to see Ao when she first met Mira.
- Voiced by: Megumi Yamaguchi (JP), Morgan Berry (EN)
She has been interested in astronomy from a very young age, and at the time she first met Mira, she has already been quite knowledgeable in the area for a child and continues to be a source of knowledge for Mira in the present day.
- Aloof Dark-Haired Girl: Played with. In Chapter 2 (animated in episode 1), the day after they reunited, Mira describes Ao as having the vibes of a "mature cool beauty," referring to this trope. Ao has long, dark blue hair, is quiet and reserved, and has a calm demeanour. However, her height (1.58m) is just average by Japanese standards, with both Suzuya siblings taller than her. On the other hand, while her case looks like the "shyness mistaken as aloofness" type of subversion, she isn't, either—both her shyness and stoics are real.
- Beware the Quiet Ones: She is usually quiet and demure, but the one time when Mikage indicates she won't mind if Mira got interested in geology and switches to the geology side of the club, she responds with such anger that her Girlish Pigtails flies horizontally, and gives Mikage such big Death Glare that sends Mikage crying Tears of Fear.
- Blue Is Calm: She is designed around a blue Color Motif: her name means "blue" to begin with and true to this trope, she is quiet, demure, level-headed, and intelligent, in contrast with her Best Friend Mira.
- Blue Means Smart One: Ao is uniquely designed to have a blue Color Motif: she has blue hair and blue eyes, and her name means exactly that. She also plays The Smart Girl role in the Earth Science Club in this School Club Story, being an astronomy geek who's also strong in the sciences, as well as the Only Sane Woman after Mikage's been Graduate from the Story.
- Boyish Short Hair: She had very short hair when Mira first met her, which is one of the reasons why Mira assumed she was a boy.
- Character Development: In addition to Grew a Spine, she is also becoming less shy as the story goes on. At the beginning of the series, especially in the first two chapters, she is a full-blown Shrinking Violet who blushes a lot and keeps pausing as she speaks. While she certainly still has some kind of social anxiety which is best manifested during the School Festival, to the eye of an in-universe observer, she's definitively quiet, but not shy, when she reaches the second year. This despite readers/viewers know well that she doesn't speak much because of social anxiety.
- Cheated Angle: She has two strands of hair that refuse to be pushed down, which can be on either side of her head based on the author's needs. In the picture here, they're located to her left (right side to the viewer).
- Colour Motif: While most of the main cast were given one of these, her case is the most blatant. Her name means "blue"note , she has blue hair and blue eyes, and personality-wise she's a mixture of Blue Is Calm, Blue Means Smart One with a bit of Shy Blue-Haired Girl.
- Determinator: After she Grew a Spine during the third volume. Her rather audacious plan to go to Ishigaki Island on her own and door-crash herself to be an observer at the Shiny Star Challenge makes a few other characters referring her as being "stubborn" and "gutsy".
- Deuteragonist: The relationship between Mira and Ao forms the core of the premise. Since the story is often told in Mira's voice, this makes Ao the deuteragonist.
- Ditzy Genius: She is usually seen as sensible and intelligent, but her occasional lapse of common sense puts her to this trope:
- During the seventh chapter, Mira thinks Ao is Book Dumb just like her when they both have to take make-up exams. It turns out Ao would have received high scores if she'd written her name right on the exam paper.
- She is vastly knowledgeable about astronomy, but when asked to design pastries with an astronomy theme... let's say Moe rejected her designs wholesale for being physically impossible to make.
- During the Christmas Episode, she thinks "add all the ingredients into the pot" means adding adding a whole bag of chili powder.
- Defrosting Ice Queen: When they reunited, Mira initially sees her as an ice queen (including referring to her as "cool beauty," the standard Japanese term for this archetype) because she is far more reserved than she used to be. It takes a Stargazing Scene-over-the-phone by Mira and Ao to cause the latter to be more expressive (at least to Mira):Mira: Suzu, Ao doesn't seem like a cool beauty anymore, does she?(Mira glances into Ao's classroom while Ao is smiling)Mira: She's super cute!
- The Dutiful Daughter: Ao's explanation of why she doesn't tell her parents she doesn't want to move with them in the dub makes it sounds like she attempts to be this, despite the fact that it is heartbreaking to her. In the original, her explanation is that a child's whims won't change the situation.Ao: Adults shouldn't have to jeopardize their career paths to satisfy the whims of a child.
- Expository Hairstyle Change: Her personality change from a tomboy to a quiet and demure girl is accompanied with growing out her hair to be longer, as opposed to the Boyish Short Hair she was introduced with.
- First-Person Smartass: Calling the demure Ao a smartass might be a misnomer. However, since eventually, she becomes the Only Sane Man of the Earth Sciences Club, the combination of that trope and her reluctance in speaking means she often points out the odd things in inner monologues.
- Gender-Blender Name: "Ao" is a unisex name, but it's more often given to boys. This is one of the reasons why Mira initially thought she was a boy, and likely why Misa still calls her "Ao-kun" ("-kun" being an honorific that is more often used for boys).
- Girlish Pigtails: She mostly wears her blue hair in low pigtails, and her personality is consistent with the quiet, well-mannered girl type. This is also an invocation as her Expository Hairstyle Change after she grew out of her tomboy phase.
- Girly Girl with a Tomboy Streak: She's introduced as a tomboy with Boyish Short Hair, to the point that Mira mistook her for a boy. In the present day, she's a quiet and demure girl with Girlish Pigtails. However, she still maintains a few masculine traits, such as poor housework skills, a preference towards black coffee, as well as being good in science up to and including reading Science Fiction.
- Goal in Life: Personally, to discover an asteroid with Mira. As career goal is concerned, being an astronomer.
- Grew a Spine: She is never a doormat of any sort, but her fear of speaking makes her reluctant to speak up for herself, despite how strongly she feels. She gets better eventually, to the point that during the Ishigaki arc, people describe her as being gutsy, despite still mostly The Quiet One.
- In the beginning, she needs to be encouraged by Moe to approach Mira. In the tenth episode, it's her turn to encourage the usually energetic Mira to go to Shining Star Challenge without her. At this point, Mira noticed she becomes grittier.
- Ao initially isn't the best at standing up for herself, as she admits that she hadn't even considered telling her parents that she doesn't want to move. Later, not only does she do just that, but she even makes arrangements to travel to Ishigaki Island by herself without telling Mira or Endou.
- Hates Being Touched: She doesn't like people coming close to her. She gets totally blushed when Misa gets close to her during Chapter 7/Episode 3, while during Episode 11/Chapter 35, she's acting defensively when Shiho comes close to her. In the latter case, Shiho concluded from this that Ao is a rather shy person. The only person she doesn't have a problem getting close to is Mira.
- Inconsistent Spelling: Generally, Chinese approach Japanese kana names by translating them. There's no doubt "Ao" means blue/green, but there are several hanzi (or kanji for that matter) that is associated with this morpheme with subtle meaning differences—in this case, her name is 藍 (simplified: 蓝), note (blue) in the official manga translation, but 蒼 (simplified: 苍), note (Heavenly Blue) in the official anime subtitles.
- Inner Monologue: Because she isn't comfortable speaking to anyone except Mira, a lot of how she feels is expressed by inner monologues.
- Literal-Minded: At least once. During the Christmas Episode, the cast agrees to make a slightly spicier hotpot to make up for the clubroom's lack of heating, so they purchased a bit of chili powder on top of some off-the-shelf kimchi broth base. When Mira asks her to "add all ingredients into the pot", she takes it to mean the entire bag of chili powder.
- Long Hair Is Feminine: This trope summarizes her Expository Hairstyle Change. When she was a child, she was a grumpy tomboy with Boyish Short Hair to the point that Mira mistook her for a boy. As puberty hit she turns more (conventionally) feminine, becoming a quiet and demure Shy Blue-Haired Girl by Present Day. This was accompanied by her growing out her hair to be longer and tie it into low pigtails, which look so unambiguously feminine that Mira immediately gets an Unsettling Gender-Reveal when they reunited.
- Lust Object: Moe has a barely controlled lust over her: Moe has sniffed Ao or her belongings, or declared wanting to do so, multiple times, not to mention her response to Ao's having to move away is to elope with her. However, all of these are Played for Laughs.
- Meaningful Name: Her name means "blue"note . She has blue hair and blue eyes, and personality-wise she's a mixture of Blue Is Calm, Blue Means Smart One with a bit of Shy Blue-Haired Girl.
- Nerds Are Sexy: Mira took an interest in her due to her passion for astronomy, or, in other words, she's being an astronomy geek. While the current relationship between the two is rather ambiguous, it is implied Mira would attempt to date her if she was actually a boy as Mira assumed.
- Only Sane Man: She plays this role after Mikage Graduate from the Story. The most evident of it is in Chapter 45, when she took over the place of handing "Rejected" responses to Mira's plans.
- Otaku: She can simply be described as an astronomy geek, having been into that hobby since childhood and, at Present Day, being very knowledgeable in that area (and sciences in general, by extension).
- The Quiet One: Being quiet is one of her defining traits. While by Kirara standards she hardly counts as a Shrinking Violet, she is specifically noted to have a fear of speaking due to being teased for Open Mouth, Insert Foot when she was younger. As a result, she tends not to speak very much, unless it's about Mira or astronomy.
- Sesquipedalian Loquaciousness: She has the tendency to use very exact and technical vocabulary regardless of the audience. The effect of this varies; her explanations scared a toddler with her Scary Science Words but got a few other people interested (Mira included) in astronomy. The Shiny Star Challenge arc also shows a mildly deconstructed case; she wasn't accepted because she wrote too much.
- Shy Blue-Haired Girl: She is initially shy and quiet, and wears her blue hair in Girlish Pigtails. That said, she is a downplayed case. She is genuinely quiet and demure, which is explicitly mentioned to arise from due to being teased for Open Mouth, Insert Foot in the past which makes her reluctant to, as well as lacking confidence in, speaking to others. However, she is never seen to be withdrawn like most characters of this type.
- Silk Hiding Steel: After her Character Development, she becomes more of a Determinator for her own goals despite continues to be quiet, demure, and a bit shy. When Shiho gets a hold of why she is there during the Shining Star Challenge, the latter pretty much lampshaded this point:Shiho: Wow. You seem so docile, but you're pretty bold.
- Situational Sociability: She is usually uncomfortable speaking up to others, and even she does does speak, expect her to pause a lot. However, there are two exceptions:
- She opens her chatterbox when Mira is involved. More telling of this is in Chapter 14/ Episode 5, when both Ao and Moe see the former being able to "talk to [Mira] like normal" as evidence of how close Mira and Ao have been.
- When astronomy is involved, she can go all the way to Sesquipedalian Loquaciousness.
- Staying with Friends: She is this after Chapter 31, due to the events in Chapters 23-28. There's nothing wrong with her parents other than Really Moves Around due to her father's job, but she can't handle the idea of parting with Mira for the second time.
- Tomboyish Ponytail: She invokes this during the School Festival of her second year, owing to her crossdressing a male waiter. She's been seen wearing ponytails in other situations, but they're closer to the Motherly Side Plait than this.
- Tomboyish Voice: Only in the dub. Morgan Berry's voice for Ao, while soft-spoken, has a distinctively deep timbre. This is in contrast to the Japanese VA Megumi Yamaguchi, whose voice is more in line with a Shrinking Violet (which Ao also is).
- Tsurime Eyes: Hers is an unusual Zigzagged case. While she's always drawn with eyes like that, she's introduced as the most introverted member of the cast, which means she isn't that trope...until she Grew a Spine in the third volume, where she starts to bear the headstrongedness that is the personality hallmark of this feature.
- Used to Be a Tomboy: She's introduced as a tomboy with Boyish Short Hair and relatively masculine speech patterns, to the point that Mira mistook her as a boy when they first met. Puberty turns her into a rather girly girl; in the present day she is quiet, demure, and wears Girlish Pigtails, though she still has some conventionally masculine traits.
- Used to Be More Social: Mira and Ao met once as children and only reunited some ten years later. Mira has noticed Ao, who was quite talkative as a child, has become a lot quieter. Turns out Ao developed a fear of speaking in the interim, after being teased for a single incident of Open Mouth, Insert Foot / That Came Out Wrong.
- Wake-Up Call: The With a Foot on the Bus incident. She isn't an Extreme Doormat because she clearly has her own aspirations from day one, but she often lets her social anxiety overrule them, which means she often functionally acts like one. She realizes from this that not standing up to the occasion is risking her identity. As she explains her actionsspoiler note later, during the Shiny Star Challenge arc:Ao: I surprised myself, too. But I didn't want to have any regrets about it. Like I regret doing nothing when dad got transferred.
Mai "Ino" Inose
Always nervous.
- Voiced by: Maria Chishide (JP), Bryn Apprill (EN)
Proportional to her miniature figure, she has a kind but rather childish personality, which makes her essential in keeping the post-merger Earth Sciences club together, yet on the other hand, always feels being Fish out of Water and doubt whether she's up to that task.
- A-Cup Angst: Very self-conscious about herself in comparison to Ao and Moe during the Beach Episode.
- Convenient Photograph: Mai's case of Grew a Spine comes from the background of a photograph she took three months before, during Earth Sciences Club's summer camp. The picture is of Mikage (which Mai has a bit of crush on and unknowingly been Mai's Living Emotional Crutch at school) standing in front of a showcase in the Geological Museum, but when she reviewed it while she's been freaking out about having the club presidency passed to her half a year early, what she noticed is, instead, the content of the showcase—mineral samples used in past Japanese qualifiers of the International Earth Science Olympiad
. This inspires her to take steps to become a more independent leader—by participating in this year's qualifiers. - Chronic Self-Deprecation: Her lack of self-esteem makes her frequently doubts whether she is up to the task as the club president, despite Mira and Ao agree she is good at what the club most badly needed at the moment.
- Covert Pervert: She is mostly a nice and wholesome girl, but the fact that her Imagine Spot on the term "exposure correction" involves "'correcting' a panty shot by putting a Censor Box over that person's eyes" indicates she has a well-hidden perverted streak.
- Extreme Doormat: Before she was passed the torch by her senpais, she effectively acts as Mikage's The Heart and has little personality of her own. However, she does Grew a Spine afterwards.
- Fish out of Water: Due to her lack of confidence and inability to handle stress well, she has quite a bit of distress when she is named the president. This is why, in Chapter 22/ Episode 7, Mira suggests to pick up the offer to be volunteer instructors at a children's stargazing event. As an astronomy event, Mai's responsibility is relatively light, so that she can get used to her new role.
- Grew a Spine: Her admiration towards Mikage means before she is named the president, she pretty much treats Mikage as her Living Emotional Crutch and didn't do much really of her own. It took her a whole episode (Episode 7) that she decides to take steps to make herself more like an independent school club president, first by participating in the Earth Science Olympiad.
- The Heart: Mikage's antagonistic attitudes has the potential to cause operational issues to the newly merged club. Mai acts as a mediator between Mikage and Mari to make sure the astronomers and geologists in the club can work together. Eventually, in Chapter 38, Mira and Ao realize Mai's the club's real integrator.
- The Ingenue: While she has moments of covert perversion, she is generally unaware of the sexual intentions of the people around her. For example, while even Mira can get occationally fed up by Moe's perversion, Mai doesn't seem to understand what's in Moe's mind she the latter says she likes "gathering girls' data." Mai co-stars in the Extra Material strip called Suzu's Research, where she often just sits around Moe as the latter peeps into the club room.
- Nervous Wreck: She doesn't have much self-confidence. As a result, she freaks out very easily since she doesn't think she is capable in handling the task on hand.
- Non-Uniform Uniform: She always puts a pink sweater over her uniform.
- Older Than She Looks: Despite being the shortest (144cm) and flattest of the club members, she's a year older than Mira.
- Running Gag: Whenever she needs to point something out while Imagine Spotting an Exposition Diagram, she pulls out a pointer with a cartoonish pointing hand at the end of it.
- Tareme Eyes: Her droopy eyes symbolizes her childishness.
- Token Mini-Moe: She is the only member of the cast that is cute in a childish way, and her body is not helping matters.
Mikage "Sakura" Sakurai
The determined vice-president.
- Voiced by: Nao Tōyama (JP), Terri Doty (EN)
- Berserk Button: She is not pleased when others say she is intimidating or scary. Mira often runs foul of this, but the Newspaper Club sometimes gets her on the nerves because of this.
- Chronic Self-Deprecation: Not about herself per se, but she tends to see her hobby in a worse light than what it actually is. This is best demonstrated in the School Festival arc, she is surprised that many of her classmates seem to be interested in what she's doing—she always think rocks is so niche that she expects few people to be interested in it.
- Desperately Looking for a Purpose in Life: Unlike other club members, she never has any Goal in Life and not even career goals. Being a twelfth grader, she finds that distressing.
- Fiery Redhead: A Downplayed example. She has red hair and a sharp tongue, and isn't above slapping or flicking the others when she's frustrated.
- Get A Hold Of Yourself Man: She flicks Mira in the forehead and tells her to stop wallowing in self-pity, after Mira suffers a Heroic BSoD due to not noticing that something was wrong with Ao until she told Mira and Mai about her family moving.
- Ice Queen: An Informed Attribute. When helping Mikage with her School Festival exhibit, one of her classmates who's also the Cute Sports Club Manager mentioned Mikage is "cold and mysterious" in class. And unlike in the clubroom where she occasionally defrosts, it seems like she never ever does that in the classroom.
- Living Emotional Crutch: She unwittingly becomes this for Mai for more than a year, because Mai admires her so much to the point of using her to soothe her Nervous Wreck traits. This becomes evident when she and Mari hands off the club presidency to Mai; Mai's Heroic BSoD is manifested by going Ocular Gushers for days while clinging on to Mikage's belongings in a Cradle of Loneliness.
- Only Sane Man: She is this to the entire Earth Sciences Club in her third year of high school, since she's only person who can think realistically at all times.
- Tsurime Eyes: The corner of her eyes go upward, symbolizing her Tsundere personality and her being one of the more headstrong characters in the cast.
- Tsundere: Due to often having an unpleasant disposition but actually being a nice person at heart, she's been described as a tsundere In-Universe.
Mari "Monroe" Morino
The broad-minded club president.
- Voiced by: Sumire Uesaka (JP), Natalie Hoover (EN)
- Beneath the Mask: Because she finds her Goal in Life a bit too far for her to reach(as in, while there're records of high schoolers discovering asteroids, she's definitively too young to be an astronaut), while she does have real interest in astronomy, she isn't as enthusiastic as Mira or Ao. She mostly sees herself as a professional manager and didn't think she is enjoying club activities... until she graduates.
- Beware the Nice Ones: When Sayuri lets slip her willingness to blackmail the Earth Sciences Club in exchange for a scoop, Mari records the conversation and uses it to blackmail her instead.
- Big Eater: An Informed Attribute. She doesn't look like this trope in the few scenes of her eating, when she is in the Geological Museum, she's pretty much drooling at the fossilized fishes by the imagination of eating them. This prompts Ao's comment of her being "always hungry."
- Camera Fiend: Often sneaking pictures of the club's activities, much to Mikage's dismay and Moe's excitement. Chapter 16 reveals the two share photography experiences and tips. Unlike Moe, there is no signs of perversion in her case.
- Cloudcuckoolander: Unlike the more down-to-earth Mikage, Mari often sounds like she has her head in the clouds, as Ao lampshaded.
- Goal in Life: To become an astronaut.
- In-Series Nickname: "Monroe-senpai". It's not only because the similarity of her name to Marilyn Monroe's, but also because she share some appearance traits with Marilyn: both of them have a mole (at different places), and Mari has the largest cup size in the cast.
- Motherly Side Plait: She ties most of her hair into a braid and lays it over her left shoulder. While she isn't a mother, she has a soft, gentle and nuturing personality such that Moe's report in Chapter 13.5 refers her as the "big sister" of the Earth Sciences Club.
- Ms. Fanservice: Invoked by herself In-Universe. As a believer of Sex Sells, she certainly knows how to put her gorgeous figure to good use. For example, during Astronomy Club's last School Festival exhibit a year before the story starts, she draws visitors into their planetarium display by... dressing as a Bunny Girl.
- Nice Girl: Especially when compared to the prickly Mikage, she's a kind and laid-back person.
- Rapid-Fire Typing: In the anime, she practices this when producing the club newsletter in the second episode. Justified somehow as she is borrowing Endou's laptop for this purpose, so the time limit is presumably tight.
- Sex Sells: She is a believer in this, believing using fanservice will bring in more visibility during School Festival. Her "sexy planetarium" from the one a year before Present Day aside, her idea of a maid cafe embarrasses most other club members during Mira's first year at Hoshizaki.
- Tareme Eyes: Her cases of this symbolizes her being the Nice Girl of the club administration.
- Weight Woe: She is the only cast member who is worried about her weight; this is apparent in Chapter 6, she forgoes dinner since she noticed she has put on a few pounds. Sakura thinks it's more her breasts than anything.
Yuu "Nana" Nanami
Serious and honest.
- Voiced by: Sumire Morohoshi (JP), Kristen McGuire (EN)
- Beneath the Mask: She actually enjoys meteorology as a hobby, but she tends to suppress it in favor of a sense of duty.
- Brutal Honesty: Immediately after joining the club, she tells the other members about the club's cultural festival exhibit's shortcomings, as well as her belief that geology and astronomy aren't as useful as meteorology.
- Cloudcuckoolander: Downplayed. While she belongs to the more serious half of the club together with Mikage and Ao, unlike her two senpais her conclusions are as likely wrong as right. She has a problem of jumping to conclusions, and letting her prejudice influence her judgment. As a result, she comes off as rather lacking in common sense.
- Comically Serious: She may not as serious as Mikage, but Mikage's seriousness comes off as straight-laced, while Yuu's is often intertwined with awkwardness.
- Freudian Excuse: Her interest in meteorology is partly derived from an incident in which her aunt's home was damaged in a flood, resulting in many priceless family keepsakes being ruined.
- Friendly Address Privileges: After warming up to the other club members, she insists that it's fine for Ao and Chikage to call her "Nana," as Mira does.
- Hidden Depths: Despite being serious, a part of her does actually seem to enjoy the study of the weather, something that Endou notices.
- Idiot Hair: She has a tuft of hair that goes straight up the top of her head, and she's a Comically Serious character who is often lacking in common sense.
- Innocently Insensitive: She speaks her mind without reading the room. For example, in Chapter 34, when the results come back for the Shining Star Challenge applications- Mira passed and Ao failed- the first thing she wonders aloud is why it is Mira, rather than Ao who passes it. Chikage has to shut her up for rubbing salt into their wounds, especially the two are obviously having an Heroic BSoD.
- It's Personal: While Mira, Ao and Mari have personal reasons for their hobbies, only Yuu sees her interest in meterology as this, owing to her extended family have been affected by adverse weather.
- Not So Above It All: Not only is she serious compared to the other members, but she got into meteorology out of a sense of duty toward others, rather than genuine enjoyment of the subject. Despite that, when she sees a rainbow, she enthusiastically shares what she knows about it.
- Sugar-and-Ice Personality: She comes off as overly serious and even cold, but she gradually becomes closer with her fellow club members.
- What the Hell, Hero?: She doesn't express the sentiment to Ao's face, but she tells her other clubmates that she doesn't approve of Ao tagging along as an observer to the Shining Star Challenge despite having failed the screening.
Chikage "Chika" Sakurai
Mikage's younger sister. Likes fortune-telling and power stones.
- Voiced by: Konomi Kohara (JP), Apphia Yu (EN)
- Actor Allusion: She first appears in the manga after the anime's voice acting cast is confirmed, which means her nickname "Chika" alludes to Konomi Kohara's most famous role to date: Chika Fujiwara of Kaguya-sama: Love Is War.
- Big Sister Worship: She says that Mikage helped inspire her interest in geology.
- Elegant Gothic Lolita: As one can notice in the picture above, Chika likes frilly clothing. To top this off, in Chapter 44, she practically wears a full set of this, complete with a black umbrella.
- Fortune Teller: She specifically practices geomancy, a form of divination that involves interpreting the patterns of thrown rocks, and is insightful on the hidden meanings of gemstones.
- Power Crystal: She is a believer of this concept. This is demonstrated in Chapter 26.5, when she believes the crystal on her pendant helps Mikage getting a really good apartment.Chikage: Stone power~~~!
- Strong Family Resemblance: In terms of appearance, she looks like Mikage but with longer and redder hair. Mai particularly notes the strong resemblance between the two siblings.
Yuki Endou
- Voiced by: Lynn (JP), Megan Shipman (EN)
- Apathetic Teacher: She seems to enjoy making fun first, and being a teacher second. However, as the hot springs regulars tell the club members, she used to be diligent and talented when she was younger. She seems to be starting to get over this at the end of the Ishigaki arc, though.
- Hidden Depths: It turns out Endou is an astronomy enthusiast, competent enough to be selected into Shiny Star Challenge, one of the most prestigious astronomy summer camps in the setting. She is now acting more like a Sensei-chan who seems to be looking for fun over anything else, but that is due to professional burnout.
- Lab Coat Of Science And Medicine: She often wears a lab coat over business casual attire.
- Last-Name Basis: She calls most of her students by their last names, and is generally called "Endou-sensei" by everyone except for her family and some people who knew her when she was little.
Other Characters
Moe "Suzu" Suzuya
One needs to look more tender when she's giving a Love Confession.
Click to see Moe in her second year.
- Voiced by: Reina Ueda (JP), Madeleine Morris (EN)
She is mostly a energetic and considerate girl, but she is far less innocent as Mira—she has a thing about other girls that her stated interest is to obtain information of them. She also ships same-sex pairings among her friends; Mira and Ao's relationship would have been more awkward but for her assistance in the second chapter.
- Audience Surrogate: Part of how she acts is really an indication of how a Yuri Fan would react to different scenes.
- Camera Fiend: She is fond of photographing the cast members at every opportunity and even. She pays Mira and Ao a modeling fee for the pictures she discreetly took of them while they were working at the Suzuya bakery.
- Cannot Spit It Out: She had a crush on Misa for several years as of Present Day, but she didn't have the confidence to confess to the latter until Mikage encouraged her to.
- Can't Act Perverted Toward a Love Interest: She often has perverted fantasies around the girls, and this even extends to her crush Misa. However, she never fantasizes doing anything perverted in front of Misa. The only time she expresses some kind of perversion towards the Misa is in Chapter 29, when she tells Mira and Ao that one good thing about Misa moving out for college and Ao moving into her room is that she finally can do some Perverted Sniffing on Misa.
- Clingy Jealous Girl: Zigzagged. In the beginning of the series, she makes it clear she'd take all means to prevent Mira from getting a boyfriend, and is relieved when Mira found out the "boy" she had a crush on is actually a girl. Defied later; after beginning to feel jealous of Ao for getting so close to Mira so quickly, she does a one-eighty and realizes that all three of them can be friends without competition.
- Cosplay Otaku Girl: Implied. Early on during the School Festival arc, upon learning the Earth Sciences club is planning on a Cosplay Café, there is a certainly level of glee in her face, and she immediately whips out a costume catalog and give out recommendations as if she's more interested than the club members.
- Cuteness Proximity: Squeals over the pictures Mari takes of Mai, and is overly excited to see Mira and Ao wear meido outfits. And that's an understatement for sure.
- Do Not Call Me "Paul": She insists her schoolmates call her "Suzu", because she finds her real name embarrassing.
- Embarrassing First Name: Because she is not fond of being called "Moe Moe", the same way her family bakery's customers call her, she also finds her first name embarrassing as well. She asks her friends to call her "Suzu" instead.
- Embarrassing Nickname: The bakery's customers usually calls her "Moe Moe," a name embarrassing enough that she finds her own first name embarrassing.
- Everyone Has Standards: She acts rather perverted towards the girls in the cast. However, she refuses to do this towards Misa, the person she actually has a crush on.
- Girl Watching: When she says she likes "collecting the girls' info", she means she's into doing this to the rest of the cast. Played for Laughs of course.
- Girlish Pigtails: Invoked. Before her Significant Haircut, she braids her hair into pigtails while working for the Suzuya Bakery, while letting it down at school, because the uniforms at Suzuya Bakery accentuates femininity.
- Goal in Life: Making the Suzuya Bakery the world's top baker.
- Hidden Depths: For a schoolgirl who doesn't have much association with the otaku subculture, she seems to have a good grasp of quite a few Anime Fanspeak terms, especially the word "
moe" under that context. - Honorary True Companion: She's too busy tending the Suzuya Bakery to commit to the Earth Sciences Club (or any club for that matter). However she helps with the club's activities so often that the club treats her as if she was a member, anyway.
- Ironic Name: While her character design follows the Moe style, her tropes are usually not the kind that would be considered Moe, i.e. triggering the protective instinct of the reader/viewer. This point is particularly obvious when comparing her with Mira and Ao.
- Lipstick Lesbian: She acts like a smitten teenage girl when she interacts with her crush Misa, putting her to this trope.
- Lovable Sex Maniac: Make no mistake, Moe is one big lesbian pervert. When asked by Megu about how Moe is doing in school, what Ao can recall is her stalking, touchy-feely behaviour, and the suspicious photo exchanges between Moe and Mari. That said, the cast treats her as a great friend and has tolerated all these.
- Love Confession: She gives one to Misa on the Valentine's Day before Misa is set to leave for college. Misa is implied to have respectfully rejected it, asking Suzu to live for herself instead of admiring her, and besides her Significant Haircut Suzu seems to take it pretty gracefully.
- Meta Guy: While justifiable by her sexual orientation, her opinions and actions regarding the rest of the cast frequently represent the stereotypical moe and Les Yay loving Kirara readers would think, including the (sometimes borderline-lewd) Girl Watching, analysis and squeeing over the girls' Charm Points, as well as literally being a Shipper on Deck for Mira and Ao owing to their Homoerotic Subtext. She has even effectively declared "Het Is Ew" among her friends.
- Only Known by Their Nickname: Because of her insistence that she be called "Suzu", she is never being referred to as "Moe" in the series. This extends to the dub; its closed captions refers to her as "Suzu".
- Perverted Sniffing: She seems to have a thing for this for the other girls she likes. For example, she states an advantage of Ao moving into Misa's room is that she can get both their scents often.
- Second Place Is for Losers: Because of her upbringing, she is extremely confident of her pastry-making skills among her peers. As a result, her moon-phase pancake getting the second place during the School Festival's booth food competition sends her to Heroic BSoD for a few days.
- Significant Haircut: She cuts her hair short when the new school year begins at Chapter 32. The reason is, she keeps her hair long because she admires Misa, but as Misa leaves the town for college, she requests Moe to not admire her but live as herself instead.
- Shipper on Deck: Moe's mainly focused on Mira and Ao, but has no qualms imagining other potential pairings.
- Stalker without a Crush: Her stated hobby is collecting information of the girls, and an extra-material strip indicates she even collects information of girls she doesn't have much to do with. On the other hand, maybe with the exception of Misa, she isn't really having crushes with anyone in the cast.
- Stepford Smiler: She uses her happy-go-lucky traits to traits to hide her feelings towards Misa, especially the anxiety around whether her feelings would be reciprocated.
- Sweet Baker: Being in a family of bakers, she is a competent pastry chef despite not having learned it formally. Despite her Lovable Sex Maniac antics, the cast generally treats her as a nice and considerate person.
- Team Chef: She frequently makes pastries to the Earth Sciences club, and, in one instance, spent some time teaching Mikage chocolate-making.
- Transparent Closet: She may not have made her orientation abundantly clear before she confessed to Misa, but the fact that she's a Lovable Sex Maniac who directs her perversion strictly towards her female classmates (despite the school being explicitly co-ed) makes it obvious that she's only attracted to other women.
- Yuri Fan: Not only is she a lesbian herself, she also prefers same-sex relationships among her friends. For example, she is mean to any boy who tries to get close to Mira. When Mira reunites with her Childhood Friend Ao, though, she declares the two are "Old Flame" and she's totally okay with Mira entering into a relationship with another girl.
Sayuri "Eve" Ibe
Even the loudest girl in the cast gets solemn when the subject is serious.
- Voiced by: Aoi Koga (JP), Sarah Wiedenheft (EN)
- Blackmail:
- She intends to blackmail the Earth Sciences club for their recent rise in popularity, but begins monologuing about her intentions. Mari ends up recording Sayuri's every word and turns the tables on her.
- She gets a rare successful case in Chapter 41 to coerce Keiko to get on a "memories trip" with her and Mai.
- The Ditz: During her introductory chapter, Mikage bluntly concludes Sayuri is dumber than Mira, who is already not particularly intelligent.
- Hidden Depths: In Chapter 39, it is revealed that, despite her airheadedness, she takes Ayano's writing inspirations seriously, frequently editing Ayano's manuscripts and gives her useful advice.
- Loose Lips: She is unable to keep secrets well, and this weakness is what leads her to openly reveal her intentions for the Earth Sciences club.
- Modesty Shorts: She wears those when attempting to do reconnaissance on the Earth Sciences Club, mainly because it involves her suspending upside down to take covert photos at the clubroom.
- The Ojou: According to Moe's private scoop on her, she is from a rich family.
- Pet the Dog: In Chapter 41, she helps Mai and Keiko—who were Childhood Friends but drifted apart—to get together.
- Rich Boredom: If Moe's scoop is to be believed, the reason she's in the newspaper club is she's bored about the monotonous life of The Ojou, and seeks stimulation from gossip and other writings.
- School Newspaper News Hound: This is her job, but her ability to find good scoops are quite limited—Moe knows more than she does.
- Self-Applied Nickname: She insists people to call her "Eve," rather than "Ibe."
- Thrill Seeker: Downplayed. Because of Rich Boredom, she seeks excitement from more stimulating writings. This doesn't limit to the news she attempts to scoops; Ayano mentions in Chapter 39 that, as the latter's editor, she prefers the latter's fantasy-genre writings to have more "shocking" content. Those "shocking" content are shocking enough to make Ao go Blue with Shock.
- Token Rich Student: While an Informed Attribute, her family is significantly richer than the rest of the cast which is no further than the middle class.
Ayano Usami
- Voiced by: Megumi Nakajima (JP), Dawn M. Bennett (EN)
- Asleep in Class: Ao recalls in Chapter 39 that Ayano is often sleepy in class. Turns out it's because she often write in the night.
- Dude Magnet: Implied by Sayuri using her as the Honey Trap to make the baseball team members helping with Mikage's boring in Chapter 19.
- Most Writers Are Writers: Like Mira, her creator trope is also downplayed. She is writing a lot to prepare for her writer inspiration, although the only person who reads it now is Sayuri.
- Only Sane Man: Compared to the loud, impulsive, and ditzy Sayuri, she's the voice of reason for the Newspaper Club.
- Satellite Character: For a while since her introduction, she acts as one towards Sayuri. It is until Chapter 39 when she is given some spotlight, when her backstory is more fleshed out.
- School Newspaper News Hound: This is what she does as club activity, and there are scenes of her attempting to obtain scoops with Sayuri.
- Screw This, I'm Outta Here: She inspires to be a novelist, rather than the journalist; the reason she's in the Newspaper club is that she wasn't getting along with other members of the Literature Club, so she switch to another club that does a lot of writing.
Misa Konohata
- Voiced by: Mai Fuchigami (JP), Dani Chambers (EN)
- Adaptational Nice Guy: The anime omits the part in which she gives Mira a flick to the forehead for falling asleep during her speech.
- Armor-Piercing Question: She asks Ao whether she's truly accepted having to move away with her father and part ways with Mira once again, which helps convince Ao to do something about the situation.
- Beneath the Mask: Her composure is probably used to hide her awkwardness in communicating.
- Blunt "Yes": When informed about Ao moving away, Misa proposes that Ao try to talk her parents out of it, resulting in the following exchange. That said, Misa apologizes, saying she was exaggerating, but is entirely serious about her suggestion that Ao should tell her parents how she feels.Mikage: Are you suggesting she throw a tantrum in front of her parents?
Misa: Exactly. - Brainy Brunette: She's the only brunette is the cast and is also the most intelligent.
- Closet Geek: Somehow she has been able to hide her nerdy weirdness—including her poor communication skills—in school, such that she is widely admired, but the Kinohata household know how weird she can be in private.
- Cloudcuckoolander: As the series goes on, there are hints of her being a math-oriented weirdo, such as naming the koi fishes in the school pond after nuclear physicists, or giggles when she sees a prime number in the advertisement.
- Cool Big Sis: Mature, composed and easygoing, she does her best to look after Mira. Moe immediately takes a liking to her when they meet. In addition, she eagerly helps out with promoting the Earth Sciences Club's newsletter, albeit embarrassing Mira in the process.
- Crippling Overspecialization: While she may act like a Cool Big Sis Teen Genius, she is incapable to deal with things that can't be expressed in numbers, have poor communication skills, and bad at housework.
- Even the Girls Want Her: At least, Moe has a crush on her and eventually confessed.
- Good with Numbers: It seems Misa's head is all math. Moe once mentioned she can't handle anything that can't be put into numbers, and Mira mentions she always looks like she's doing calculations in sleep, and giggles when she sees a prime number in the advertisement...
- Innocently Insensitive: Her "experiment" on Ao in Chapter 7 / Episode 3 smacks of this. What she wants is to know whether Ao gets close to everyone, or just to Mira. She does this in a way that Moe mistakes her for seducing Ao, and both Ao and Mira are not pleased by her explanation that Ao was her "guinea pig".
- No Social Skills: While she usually appears as a composed Cool Big Sis, she is also seen to be prone to Blunt "Yes", Brutal Honesty, Innocently Insensitive or Poor Communication Kills in the scenes she appears. And according to Moe, she's been always bad at communicating, implying her social skills are subpar.
- Not So Stoic: While she appears to be a composed Cool Big Sis, in private she may lose her composure. For example, after Mira gives her a banded rock as a good-luck charm for her exams, she immediately sets up a shrine in her room just for the rock.
- Oblivious to Love: She has no clue that Moe has a crush on her for years.
- School Idol: To some degree. We don't get to know how Hoshizaki's student body think of her, but the fact that her endorsment for the school newspaper and the Earth Sciences Club's newsletter greatly increased their popularity indicates this trope may be in play.
- Shipper on Deck: Like Moe, she is supportive of the Mira / Ao pairing, although not actively shipping like Moe does.
- Student Council President: She is one during Mira's first year, and delivers the address to the incoming students at the start of the series. Monroe tries to get Mira to convince Misa to increase their club's budget. While she is widely admired at school, she does have some CloudCuckooLander traits.
- Teen Genius: An Informed Attribute. When Mira mentions Misa is indeed her sister, Mikage is astonished by the Sibling Yin-Yang, saying it's impossible for the younger sister for "such a genius girl" to be so stupid. Her naming of the koi after nuclear physicists implied, at least, her knowledge of physics is beyond high-school level.
- Tsurime Eyes: Following this series' "serious characters have upturned eyes" convention, it comes quite naturally towards a numbers-oriented Cool Big Sis.
Yuuko Konohata
- Voiced by: Chinami Nishimura (JP), Caitlin Glass (EN)
- Mother Looks Like a Sister: Other than somewhat taller than her daughters, she doesn't look like she's at her mid-thirties (at least).
- Shared Family Quirks: She spams LINE stickers just like Mira does, leading both Ao and her mother to say "Like mother, like daughter."
Shiori Manaka
- Voiced by: Ayako Kawasumi (JP), Giovannie Cruz (EN)
- Open-Minded Parent: She listens to her daughter's proposal to stay with Mira's family rather than move. She raises some legitimate objections, but after Ao continues to plead her case, she agrees to talk it over with Ao's father, and the family accepts Ao's proposal.
Megu Suzuya
- Voiced by: Natsu Yorita (JP), Corey Pettit (EN)
- Ascended Extra: For nearly 30 chapters after her debut in Chapter 16, she is just a Satellite Character of Moe's and is little more than an extra with a few lines. It wasn't until Chapter 43 when she was substantially characterized and has some story-relevant role.
- Bifauxnen: Moe makes her dress like a butler, instead of a meido, when they work at their family bakery. She looks handsome in this uniform, something the customers agree.
- Big Little Sister: She's already taller than Moe despite still being in middle school.
- Boyish Short Hair: Her hair is usually shorter than her shoulder, which fits her status as the most athletic of the entire cast.
Rio Saeki
- Voiced by: Tomomi Mineuchi (JP), Amber Lee Connors (EN)
- Friendly Rival: She's willing to give the Earth Science Olympiad her all, but doesn't have any hard feelings against those competing with her.
- Last-Name Basis: Both she and Mai only provide their family names when introducing themselves.
- Named by the Adaptation: She is not given a first name in the original; the name "Rio" is only given in the anime credits.
- Nice Girl: While she knows that the test is a competition, she doesn't see her fellow test-takers as enemies, but as fellow earth science enthusiasts.
Asuka Tomori
- Voiced by: Shino Shimoji (JP), Tia Ballard (EN)
- Dumb Muscle: According to Chapter 35 of the manga, she is often being said to be this at home.
- Fangirl: The reason she's into astronomy in the first place is this trope—she's a fan of Neon, an Idol Singer who is supposed to be an astronomy enthusiast.
- Girlish Pigtails: While she is not the only member of the cast with twintails, she fits the archetype the best, being a playful, fun, energetic, and innocent girl.
- Goal in Life: To be a manager in the entertainment industry.
- The Watson: Her ignorence in astronomy, serves a storytelling purpose: as Mira, Ao and Shiho are expected to know some of the astronomical concepts that appears in Shining Star Challenge, her existence gives an in-universe justification for expositions for the viewer.
Shiho Makita
- Voiced by: Manaka Iwami (JP), Alexis Tipton (EN)
- Cloudcuckoolander: It can be hard to understand what she is thinking. For example, when she gets an understanding on Ao's unusual combination of being both a Determinator and a Shy Blue-Haired Girl, she declares Ao's brain "must look interesting", freaking out Ao in the process. When Asuka asks her whether she is a tinfoil hatter, she says despite she've been called that several times, she isn't.
- Goal in Life: To be a counselor, career-wise.
Keiko Izumi
Introduced in Chapter 40, Keiko is Mai's Childhood Friend. Mai's interest in maps comes from her, as they used to explore the area with homemade maps when they were in elementary school. They drifted away after they went to different school thereafter, only to reunite when they are in the last year of school.
- Embarrassing Hobby: When she and Mai reunited in Present Day, she takes a condescending view on Mai's continued interest in cartography as she considers her former hobby childish. She seems to have softened a bit at the end of her introductory chapter, though.
- Ret-Canon: She was not drawn when she was first referred to in Chapter 8. When she re-appears in Chapter 40, Quro adopted the design Doga Kobo gave her for Episode 3.
