Little Busters!
Kyousuke's younger sister is Rin Natsume, the main heroine of "Little Busters!", and is initially the only female member of the Little Busters. She does not communicate well with others due to her poor social skills and can be seen as inarticulate. Due to this, she is shy, and is usually seen alone. Rin loves cats and at school takes care of several strays. Riki's roommate and fellow member of the Little Busters is Masato Inohara who loves to work out and improve his muscle mass. He has a particular fondness for Riki, which he is more than willing to express out aloud. Masato's rival and fellow member of the Little Busters is Kengo Miyazawa who is skilled in the art of kendo and seemingly has a cynical personality, but his passion for the Little Busters is unmatched by any of the other members.