Mizunuma

Mizunuma (水沼) is a character in the anime and manga series World Trigger. She's Osamu and Yūma's homeroom teacher.

Personality
She is usually very kind, and seems to be popular with students.

Trivia

 * Her name literally translates to "water swamp".
 * Compared to her original design, Ashihara made sure that he made cuter.