12-sai.: Chicchana Mune no Tokimeki 2nd Season 12

Kyou no Go no Ni revolves around Sato Ryota, a 5th grader in an elementary school. He is a bright and active boy but always manages to get in to a bit of ecchi troubles with his classmate girls. (Source: ANN)

Thor and his twin brother, Rai, are cast off to a forsaken planet by unknown masked men after witnessing the suspicious death of their parents. Given only a beam knife and a smelly satchel, they wander together in search of civilization on the primarily plant based world. They soon discover the plants have the advantage. Only the strong survive; the ones who throw away their humanity and become the beasts humans once were.

Sado Tarou suffers from sexual masochism; he experiences sexual pleasure from pain. He feels he won't ever have a normal relationship with his condition and decides to visit the Voluntary Club, a place that grants students' wishes, for a cure. At the club, he finds Isurugi Mio, a girl who thinks she is a god, and Yuuno Arashiko, the girl who caused his condition in the first place...