Summary
Yumi is a chubby student who finds herself under scrutiny alongside Masatoshi regarding the Paint-Man incident. The two begin dating, but the relationship ends abruptly after the Sket Dan reveal that Masatoshi specifically targets unintelligent girls who are easily charmed. Upon learning this, Yumi promptly dumps him. She first appears in Chapter 1, subtitled Paint-Mask, and makes her anime debut in Episode 1, titled The Campus SKET.
