Summary

Nana Utomo is the undead mean girl who lives within the sewage system across Underworld Canada, but she primarily hangs around Go Rin's toilet. She does this out of spite for the one time Rin went and opened the door of the fourth toilet stall in the girl's restroom at the Butter-Marie Academy while she was using it.

So now she haunts Rin and taunts her every morning at 7am for about 7 minutes.

Trivia

• Nana has a crush on Rin but doesn't quite realise it.
• Nana and Adam are enemies.
• She lived an easy life, so now she just acts like she has a reason to be mean as a ghost with no real direction.
• Nana likes boxing!