Ever since she was old enough to understand, Ichika (Iwamoto Renka), a high school student whose hobby is quizzes, has had a strange rule in her home. Her mother, Kazumi (Katayama Moemi), decided that her father must not cross the tape that is stuck all over the house.
One day, as her 18th birthday approached, Ichika decided to solve the "family quiz" and talked to her father, Reitaro (Takezai Terunosuke). Reitaro then confessed that he thought that the reason the tape was stuck up was because of something he said. Meanwhile, Reitaro tries to talk to Kazumi about changing the family situation, but after crossing the tape, Kazumi takes an unbelievable action. Reitaro becomes so upset that...
