Usui discovers that Karin is a vampire. What will her family do about it?

Ren sets his sights on sucking Usui's mother's blood.

Everybody is having fun at the cutural festival, except Karin who is worried about Usui getting his blood sucked by Elda. If Elda gets her way, all of Usui's feelings of love will be erased!

Usui tells Karin to go be with her family, and Karin learns just how much her parents care.