Risa Kudo

Yusuke (Kirato Wakayama) is in the 6th grade of elementary school. He has lived in the city all of his life and his father Keita (Kazuya Takahashi) recommends to Yusuke that spend his winter vacation at his grandparents' home. His grandparents live in a mountain village. There, Yusuke has a hard time adapting to the area, customs and the people. He longs to go back home. Soon, Yusuke learns the true meaning of the pre meal phrase "Itadaki-masu" ("thank you for the meal").

Arasa is at a crossroad in life between popularity and ego. Arasa is suddenly invited, by her ex-boyfriend Oraora (whiz of Charai event management company), to join a party of sex friends. The party includes: Mihiro (a cute lovely girl), Taishu (an average boy), Yaririn (head hostess with a loose crotch), and Himote (publisher, who wears men's glasses). Hitome is left uncomfortably behind, but she ends up in love. (Source: wiki.d-addicts)

Takashi learns there’s more to this exclusive high school than meets the eye when he’s recruited into its ultra-secret, mega-capital investment club.