|Japanese name:||五十島 くるみ|
SpoilerStarting in middle school, Kurumi was frequently confessed to by guys both her own age and as old as college age. At one point, she was traumatized by a particularly bad experience with a stalker, and wouldn't leave her house for a while. Takeshi agreed to protect her by pretending to be her boyfriend, and they both agreed that they would only "break-up" if either of them developed feelings for someone else.
Voiced by: Seto Asami