A sixteen-year-old who dreams of opening up his own "trendy" farm in Tokyo. He is extremely infatuated with the idol Yuka Kusakabe.
Dark and Troubled Past: His family move to Aioi to start farming and failed. They fell into debt, forcing the mother to work a part-time job and the father to take another job. The stress of being in debt made her sick, so Kousaku's father had to work farther away from his family, until Kousaku's mother died and Kousaku's father abandoned the farm and his son. As a result, Minori's family raised him.
Nice Guy: He's generally a helpful person when given the chance.
Parental Abandonment: He has lost all contact with his father and his mother is died from overwork and stress.
Oblivious to Love: Does not notice Minori's affections for him (like that one time when she willingly gave him her panties). His obsession with Yuka-tan doesn't help. This is lampshaded twice by Kei, who warns him that his obliviousness will get him in trouble one day, and by Rintarou, who pointed out why Minori makes for a good housewife (and even that still flies over his head).
A-Cup Angst: So much so Kousaku had to restrain her from hitting Bekki-sensei with kitchen utensils in Episode 8 when she deliberately mocks her flat chest.
Berserk Button: Kousaku being too intimate with another girl? She emits a rather scary aura. Bekki-sensei mocking her bust size? She will have none of that. Belittling her friends? She will not let it slide.
Does not like Kousaku being too close to Minori. Interestingly, this crops up almost right away. During the king's game in episode 2, she snaps her stick when Kousaku gets the king's stick and accidentally has Minori do strange stuff to him, such as putting her foot on his face.
She has a Cat Fight with Minori in episode 3, then their dueling cools off for a while afterwards.
In episode 11, after he comments that Minori's dress makes her look pregnant, the latter is about to comment that it would make them look like a married couple, but is interrupted by Ringo shoving her butt into and knocking her over. She also gets quite upset when she finds out that Minori's family is planning a marriage between her and Kousaku in episode 11.
Emotionless Girl: Her expression rarely changes when in Sugar and Ice Personality mode. In Episode 4, she says that she has lost her ability to smile. Her friends speculate that it is due to mental exhaustion from her idol career.
Lethal Chef: According to Minori and Kochou, her miso tastes sour and fishy. Then Ringo reveals she boiled her slippers' insole paddings to give it the appearance of red miso. Even Kousaku is not amused.
Meganekko: Sports this look when being introduced to her new classmates.
Nerves of Steel: Almost nothing can faze this girl. Being forced to wear a skimpy Dragon Quest bikini armor? She takes it in stride. A bunch of caterpillars? She calmly pick them up and put them in her hand one at a time. A smelly hen house? Doesn't flinch one bit. A horde of cockroaches? She stomps them one by one without batting an eye. However, she still has her own Berserk Buttons as mentioned above.
Cannot Spit It Out: Has feelings for Kousaku, but can't bring herself to tell him outright, although she hints at it, such as telling him he'll just marry a girl from their town and become a regular farmer in the first episode. He then points out that she's the only girl his age, causing her to blush.
Childhood Friend: Grew up with Kousaku. In episode 5, Kosaku explains that because of his Missing Mom, and his dad working late, that he had to live with her, and her parents essentially raised him due to his father abandoning him shortly after his mother died.
Clingy Jealous Girl: Outright declares that she won't let Ringo take Kousaku. She also destroyed all of the Ringo related merchandise in his room, such as posters, under the pretext of his mom asking her to do it.
In Episode 2, after seeing Kousaku getting excited at the chance of handling Ringo's panties, she decides that if Kousaku likes panties that much, he can take hers instead.
In Episode 4, when Kousaku comes to her room late at night, she immediately assumes the dirtiest scenario, then proceeds to redecorate her room to look like a Love Hotel room and make herself Ready for Lovemaking.
In Episode 5, she gets a little too excited when talking about bathing together with Kousaku.
Ambiguously Bi: He seems to enjoy shooting yogurt on Kousaku a little too much.
Bromantic Foil: To Kousaku, albeit downplayed in that he actually has a girl pining for him in secret.
The Comically Serious: Tries to keep a cool-guy act in public, but when talking about perverted things, he actually gets riled up.
I Have No Son: Inverted example. Kei disowned his father, a businessman dealing in agriculture. In episode 10, he reveals that his mother died because of the chemicals his father insisted on using on their crops. As a result, he ran away and had his aunt adopt him so he could take her last name instead of his father's.
Large Ham: Primarily when it concerns perverted subjects.
A snobbish girl in Animal Husbandry Department, known for a great rack and a rivalry with Agricultural Department, where Kousaku and his friends belong. Member of the "Shitennou" ("Four Kings of Farming"), a clique of the school's top students. She has a crush on Kei, and gets easily flustered from interacting with him.
Jerk with a Heart of Gold: For all her snobbery, her love for animals is undisputed. One such instance is when Kousaku's gang manages to incapacitate a monkey who frequently messes up their crops and consider offing him (except Ringo), her solution is to send him to the local zoo, where he will be taken care of and have a handful of mates to keep him company.
Put on a Bus: She goes overseas with Kei to learn more farming techniques at the end of episode 10.
Reluctant Fanservice Girl: Suffers this in episode 9 after several of the other characters strip her down to her underwear in an attempt to have her join them at the "beach". Which in reality is one of the flooded fields at their school during a typhoon.
The Eeyore: She sometimes acts like a Genki Girl, but then when she mentions very private stuff she did in her personal life, such as being a Christmas Cake, it often brings down the mood of her entire class.
Shameless Fanservice Girl: Besides looking half her age, she will take every opportunity to suit up in rather skimpy outfits or show off in the nude, including stripping off and putting food on her body in front of her class. It only grosses her students out even more than she already does by even simply trying to be young.
Woman Child: So much so she resents the fact that her younger sister apparently matured earlier than her, being already a mother to a ninth-grade girl with a healthy adolescent life (and a steady boyfriend).
I Regret Nothing: Doesn't mind earning a three-week suspension for her money-grubbing antics so long as she is having fun (and also gets to teach her schoolmates valuable lessons in life).
Jerk with a Heart of Gold: Yes, she's a scheming money-grubber, but compared to Akari she's a relatively nicer person. She will often give Kousaku practical advice or reward them for helping her, such as loaning them the bus to go to the beach at the end of episode 9.