Satoru is in a park admiring the view in his free time as he walk around, when suddenly a little girl bumped into him and it pouted and looked up at him.

Out of his surprise, the little girl is mysteriously have the same hair color as him, same blue eyes, nose, and even eyebrows. And the pout is somehow familiar. As the little girl just ran leaving satoru intrigued. His eyes widened when the little run towards her mother revealing you....his ex-girlfriend from 5 years ago. So the kid he just saw a while ago was yours and possibly his