The upper torso of a female, claws her way around Japan searching for her lower half. The person's lower half was severed in a train accident in Hokkaido. Anyone that hears of this story will see Teke-Teke's upper half walking aimlessly around the countryside within three days.
Hideo Aiba (Atsuji Ninomiya) is a reserved and obedient high school student, who has never had any girlfriend. He spends all his energy on masturbating, his true reason for living. His life and his solitary activities will take a radical change when a new transfer student, the sexy Kurumi Sahana (Akane Suzuki), joins his class.
The high school boy and girl from Sundome 2 continue their sexless relationship in which she is sadistic and he is masochistic, but one day there is a rumour at school about her having a relationship with a different, and older, man. The boyfriend feels as if his girlfriend is hiding her relationship with the older man.
