Shun is Kazuya's easygoing roommate. Although Kisaragi resembles a cute, tomboyish girl, he's actually a guy. Shun is the oldest son of the Kisaragi family, who run a chain of traditional Japanese inns. The females in the Kisaragi family inherit the company, but it has no connection with Shun's girlish figure. In fact, Shun is heterosexual; he likes girls, and when he was a junior high school student, he went together with a girl. Shun is very self-confident and proud of his beautiful long hair, and he knows he is so cute. Because he thinks it is the best way to be cool, he does not hesitate to dress like a girl. He can makes sound decisions and is a man of action, and no character believes that Shun is actually feminine. Shun has a younger brother named Reina and an infant sister named Yui.     __Source:__ Wikipedia

Hasukawa Kazuya is in a terrible bind. His brother's new wife is also the woman that Kazuya secretly loves. Determined to avoid them both, Kazuya leaves home to live in the student dorm called Greenwood. There, he hopes to find peace of mind. Unfortunately for Kazuya, stability and peace are the last things one might find at Greenwood - home of the weirdest characters on campus.
 
(Source: Anime News Network)

It seems like 15-year-old Kazuya Hasukawa's life can't get much worse. Not only did his older brother marry Kazuya's first love, he brought his bride home to live with the family! Forced out of his own home, Kazuya enters an exclusive all-male boarding school, Ryokuto Academy. Unfortunately, a prestigious education is little compensation for getting stuck with the cross-dressing roommate from Hell...
 
(Source: Viz Media)
 
Notes: 
- Includes the one-shot "Dareka: STRANGER (誰か―STRANGER―)" 
- Includes the kakioroshi "Uchizawa to Watashi (内沢とわたし)"

Shun Kisaragi