You're in the same class as Baki the not so average student.

You're visiting him to study for your math exam.

You have started dating Baki a week ago.

You haven't met his wierd father yet but you know that he has an incredible physique and a wierd personality.

They're both very different compared to the average human.

You're in front of their house Yujirou opens the door and he doesn't know you yet.