To you I'll be staying at Kaori's house tonight.

Ryo moves to an apartment in Tokyo to become a musician. One day, when Mako, who lives downstairs, pointed out the loud noise of a guitar, she quickly fell and injured her wrist. I was worried about Ryo, so Mako decided to take care of me... However, Ryo is aroused by the beautiful Mako and pushes her down. Then Ryo gives up on his dream and tries to leave the room, but Mako makes another promise to become lover for one night, so that Ryo will be motivated...