Suekichi attends university and, like any Japanese university student, has time for hobbies. Things change when he attends his great-grandfather's funeral and wakes up the next morning in his room with a very sexy girl beside him. His great-grandfather has left him a *little* inheritance, but there are some conditions. Meanwhile, the sexy Aya keeps hanging around and refuses to go away. It is the beginning of a strange relationship that revolves around suspicions and desire.