Kazunari Usa(宇佐 和成)

A high school freshman who resides at the Kawai Complex as one of the tenants. After graduating from middle school, he hoped to have a life where he didn't have to encounter any weird people. However, much to his surprise, his co-tenants end up being a bunch of odd individuals. Usa chooses to stay at the Kawai Complex though, due to the fact that the girl he has a crush on, Ritsu Kawai, happens to also be a tenant at the Kawai Complex. Unfortunately, the other tenants take advantage of this by constantly teasing Usa

Ritsu Kawai(河合 律)

Ritsu is a second-year high school student who lives in the same dorm with Usa. She is a seemingly shy girl who likes to read books. Her grandfather is brother to the landlady of their dorm who views Ritsu as her relative. She is trusted with looking after the dorm when the landlady takes leave. Though she is often alone, she insists she isn't lonely

The manager of Kawai Complex. Though she may appear to have a kind, cheerful, and optimistic deposition, she can be quite strict and feared when it comes to implementing to the complex's house rules. She make a good pudding which the tenants find irresistibly delicious. She also happens to be the sister of Ritsu's grandfather.

Mayumi Nishikino(錦野 麻弓)

She is a bodacious office lady who resides at Kawai Complex as one of its tenants. Besides her on-and-off relationship with her supposed husband Kenji, she often finds herself getting into a lot of other relationships that eventually fail.

Mayumi has a habit of getting drunk. As a result, she often does crazy things, cusses, and just hits everyone who happens to be in striking distance when she's in a bad mood. She enjoys teasing Usa a lot.

Shirosaki(城崎)

Kazunari Usa's roommate who is a pervert and masochist. He is turned on by almost anything; however, despite these facts, he actually comes up with some pretty good ideas at times. He is also rather friendly and occasionally, surprisingly perceptive

Kanji :渡辺 彩花
Romaji :Sayaka Watanabe
Occupation :Student
School : ?
Year : ?
Gender: Female
Age :18-19

She is a college student who is staying at the Kawai Dormitory just like Kazunari Usa. She also loves to get physically intimate with Mayumi Nishikino, such as kissing her or fondling her breasts. Sayaka claims that she loves Mayumi because she is so amusing. However, it is hinted that she may actually have romantic feelings for Mayumi.