During summer break, a junior highschool student Mitsuharu collides with an unusual creature while speeding on his bicycle. That unusual creature was a genderless alien called Toki who came to Earth for a "p...

Seiko is a normal girl with a tendency for daydreaming, and Yoshito's a fairly sensitive, subdued boy. They've been close friends since grade school, and now that they're in high school, their feelings for e...