The main character. She works as a waitress at the soup curry shop Voyager in downtown Sapporo. She later begins a career as a radio show host with her own show, Wave, Listen to Me!
- Ambiguously Bi: She's clearly into guys, as evidenced by her relationship with Mitsuo and how she frequently oogles other guys now that she's single, but her interactions with Mizuho when they're living together suggests that she has some degree of interest in her, even to the point when she contemplates getting sex-change surgery and marrying her.
- Accidental Hero: She inadvertently saves her ex Mitsuo from being murdered by his latest scam victim due to her first official radio show, which just so happened to have her roleplaying as a woman who just murdered her Jerkass boyfriend and being caught by the cops, scaring the girl into running into the street and getting hit by a car.
- Drives Like Crazy: As a result of her rushing down to the station during her shift at Voyager, ending with her pulling into the parking lot with a drift. The anime expands on this by having her car catch some air as she backs out of the restaurant. It later gets revealed that this is her standard way of driving.
- Dude Magnet: Surprisingly enough. Along with having an ex-boyfriend who later admits he enjoyed their time together and one of her co-workers holding a torch for her, her time in radio makes her fairly popular to anyone who recognizes her, one such example being some bikers, one of which is accused by his buddies of having a thing for her.
- Dumb Blonde: Not so much "dumb" but more Hot-Blooded and quick to jump to conclusions, both of which tend to get her into trouble.
- Hot-Blooded: Very aggressive and outspoken, and quick to resort to violence if she feels threatened or gets angry. This usually gets her into trouble.
- Improv: Basically how her radio show works; she's often given a random role in a random scenario, such as a woman who murdered her boyfriend or someone facing down a bear, and then she does things like answer questions and discuss various topics while living out the role.
- Ms. Fanservice: Minare is noted by a good couple of characters to be very attractive, often wearing clothes that compliment her figure, waking up in only her underwear the morning after Mano records her drunken rant, and appearing naked in the ED.
- Oh, Crap!: The look on her face when she first hears her voice on the radio complaining about localism and relationships after her night out drinking. Crosses over with What Did I Do Last Night?.
The chief director of the production department for MRS Radio. He recorded Minare's drunken rant and played it over the air the next day. He serves as a mentor for Minare as she enters the world of radio.
- Everybody Has Standards: He dragged Minare into the radio talk show business by airing her drunken rant about Mitsuo on his show, But when Minara expresses her desire to get revenge on Mitsuo by recording his phone number and address and airing it on her show, he's quick to say no and call her out on it.
- Hidden Depths: He seems to know some Ainu.
- Trickster Mentor: He takes advantage of Minare's Hot-Blooded nature in order to trick her into coming to his radio station and having her talk live to discuss her drunken rant, starting her on the path of becoming a radio host.
- You Remind Me of X: One reason for his interest in getting Minare into radio is because she reminds him of Sissel Komei, an actress he knew when he was still working back as a TV producer.
An assistant director at MRS. She lets Minare stay with her while she is short on rent for her apartment.
The radio personality for Madoka Chishiro's September Blue Moon, a popular show that aired by MRS. She seems to have something going on with Kureko.
A writer who mainly writes for Madoka Chishiro's show, though he sometimes also writes scripts for Minare's show due to being old friends with Mato. His main job is writing erotic novels under the penname Hisaki Kure.
A sound engineer at MRS. He has unrequited feelings for Mizuho.
The owner of the curry bread restaurant Voyager. He gets hospitalized earlier in the series due to a car accident caused by Toru Tachibana, Makie's brother.
An employee at Voyager. He has unrequited feelings for Minare. He lets Makie stay with him after discovering that she wasn't staying at home.
The sister of Toru Tachibana, who got Takarada hospitalized. She was imprisoned by him for months after their parents' deaths, until she managed to escape to Voyager where she now works as a waitress.
The School of Wave Wisdom
The leader of the religious organization, The School of Wave Wisdom. He held Minare, Mizuho and Kureko hostage while they are in Wassamu in order to force them make and air some programs for them.
A sixteen year old boy who joined the cult with his mother. After it was broken up, they go to live in Minare's old apartment.
- Hormone-Addled Teenager: Averted, much to Minare's surprise.
Minare's ex-boyfriend who borrowed money from her without giving it back. Her drunken rant about him kickstarts the plot.
- Brutal Honesty: Minare describes him as such, and he's quick to prove it right when they meet up again and he says that he doesn't like her choice in lipstick with an innocent smile on his face.
- Dissonant Serenity: Minare Lampsahdes how cheerful he looks and sounds when he describes how his girlfriend, who to be fair did try to murder him at the time, got hit by a car.
- Hate Sink: Between the reason he and Minare broke up, the fact that he frequently extorts money from the women he dates, the fact he was cheating on Minare and the one time he does try being nice by giving Minare her money back he does it by extorting other woman, it's clear that no one's supposed to like him.
- Manchild: Minare describes him as such, and mentions that it's how he gets women to pamper him and give him money by preying on their maternal instincts.
- Manipulative Bastard: He seems to make a habit of dating girls then extorting large amounts of money out of them before dumping them. This proves to be his Fatal Flaw when it almost gets him killed by his next girlfriend and he's only saved through sheer dumb luck.
- Never My Fault: He cheated on Minare while they were dating but when confronted about it, he claims that the girl he cheated with just deluded herself into thinking they were dating because they hit off at a bar and hung out a few times after. Minare is understandably skeptical.
- OOC Is Serious Business: Minare is naturally suspicious when they meet up again and he actually treats her decently, even giving her half of the money he borrowed from her and promising to return the rest. While it seems like he was genuinely grateful and wanted to pay her back, Minare discovers that he went back to his old tricks to get the money.
- Ungrateful Bastard: Subverted. It does seem like his attempts at repaying Minare for inadvertently saving his life are genuine; the problem is that he's getting the money by falling back to his old tricks.
- Walking Spoiler: While we all know that he's the reason the whole plot is happening, him almost being killed by his current girlfriend and inadvertently being saved by Minare's radio show comes out of left field, especially when it leads to them meeting up again.