Due to family circumstances, Yuki has only one belief: money will make his little sister happy. And thus, he works part-time jobs late into the night. His plan is to start working full-time after graduation, but his little sister tells him that if he won't go to university, then she won't either.

Due to family circumstances, Yuki has only one belief: money will make his little sister happy. And thus, he works part-time jobs late into the night. His plan is to start working full-time after graduation, but his little sister tells him that if he won't go to university, then she won't either.