Morihito Otogi is a teenager with ogre strength. His childhood friend, Nico, is coming home after completing her witch training! Following an old pact, they begin living together. Can Morihito protect the clumsy Nico from a dire prophecy?

On the first day of school, Morihito urges Nico to hide the fact that she's a witch, but she tries using magic to secretly help him out in class.

Nico's mother sends Morihito a letter containing a worrying prophecy. Unable to decipher the meaning, Morihito spends the rest of the day on his toes.

Kanshi explains that Nico's mother sent him to protect her. He and Morihito clash, but he takes a moment to warn him of an enemy within the school.

After realizing Morihito is getting popular with the girls at school, Nico learns of a so-called lovers’ tree near the site of an upcoming field trip.

Nico and Kanshi start an online video channel, but Morihito is annoyed by their lack of originality and asks their hipster classmate Magami for help.

When Kanshi can't pay his share of the living expenses, Morihito hands him a flyer from an amusement park hiring performers for a superhero show.

Nico and Morihito's classmate Kara asks them to restore a letter from her deceased mother, which her father put through a paper shredder.