|Relatives||Kaede Uchimura (Older Sister), Keiki Uchimura (Mother), Manabu Uchimura (Father)|
|Friends||Kana Iijima (Girlfriend)|
Chiaki has red to brown hair with matching coloured eyes.
He is a laid-back and fun-loving boy who enjoys cracking jokes. He is a bit perverted and mischievous, and it is sometimes hard to tell when he is being serious. However, Chiaki is truly an idealistic and open-minded boy, and he loves Kana with a passion.
He normally expresses his love for Kana indirectly because he is nervous. They struggle with physical intimacy. Sometimes he can be clueless, but he tries his best anyway. He often jokes around with Kana, much to her chagrin due to her desire to see the real him, but when push comes to shove, he would take a bullet for her.
Chiaki used to play boy's basketball during middle school. He claims that his position was "mood maker".
Chiaki is in love with his classmate, Kana. They become a couple early in the series. They are stubborn and argumentative, but they really love each other. He wants her to be happy, and he tries to impress her, but he's a bit clueless about her desires in their relationship. The first time we see him and Kana is in the bit called short distance relationship in the third episode of the anime and the 8th chapter of the manga, where he is unaware of the fact that Kana confessed to him about a year ago and thinks that they’re now dating. When she finds out and starts to cry, he asks her if she wants to date for real, and they start going out.
In the manga, there is a short little strip in chapter 17.5 (it’s an omake) where Chiaki asks Kana about kissing and she “BA~ANG!”s him (it’s one of their bits). In the same omake, they try using “BA~ANG!” On Patricia and her reaction is super over dramatic. There’s also a comic strip about them holding hands for the first time.
The next time we see them is in the bit called romantic comedy, the fourth episode of the anime and the 21st chapter of the manga. There it starts with Kana finding Chiakis western porn magazines. She is a bit peeved but then aggressively lais herself down on his bed and suggests actually doing it. After some shenanigans, they’re finally ready, but then Chiakis mom steps in and interrupts them, she quickly realizes what they were doing and leaves again. Chiaki apologizes for his mom but Kana tells him that it’s okay, and they keep going. But then his mom comes in a second time to check if they’re protected and if Kana‘s on the pill and the bit ends.
We don’t see them again in the anime until episode 6, but in the manga, there is a short omake about Kana leaving aften the second attempt.
- He works at his family's restaurant after school and on holidays. He makes 800 yen per hour.