Badminton player Taiki has always admired basketball star Chinatsu from afar. But one spring day, a surprising turn brings them unexpectedly close.

After the great war ended with humanity's victory, the world suddenly gets "overwritten" right before the eyes of a boy named Kai.

Nene and the ghost of Hanako-kun want to stay out of trouble at Kamome Academy, but shenanigans follow them wherever they go.