The story starts with a boy who was being bullied in an alley until a strange samurai arrives and beats up the bullies, helping the boy. When samurai leaves he gives the boy a business card. The next day in school, the boy reunites with the samurai in his class—turns out he's the new transfer student...

Zombie Karo tells the story of a zombie-scientist who captures a little zombie girl and teach her to act like a normal person so she can see and say goodbye her bedridden grandma.

Tomoki's girlfriend Natsuki suddenly becomes invisible and also disappears from photographs.Tomoki spends more time with Natsuki, who acts carefree about her predicament. They find out the invisibility is caused by Natsuki's insecurities about their relationship.

The story begins with the king of the demons who's waiting anxiously for the birth of his firstborn. The child is born totally healthy, but his beloved wife dies. The king of demons finds himself in the position of raising his son alone and he begins to train his son to become a fighter so he would grow up to be a proper heir to his throne.