Abstract

A boy and a girl in a junior high school became lovers, flirting, passing each other in trivial matters, and becoming more Irritation than flutters... I broke up after graduation.
And just before entering high school, Mizuto Irito and Yume Ayai meet again in an unexpected way.
"I'm supposed to be your older brother." "I'm supposed to be your older sister, right?"
The stepchild of the parent's remarriage partner was a former lover who just broke up !?
A former couple who cares about their parents decides on a "sibling rule" that "if you are conscious of the opposite sex, you lose."

Author’s Information

---