Prologue.

It was the start of the school year. A transferee, Shintaro Kisaragi, couldn't care less on making friends. He transfered so he could followed his first love, Ene. Until one time, his eyes were fixed on a girl. A mysterious girl, Ayano Tateyama.
And since then, a friendship started that made Ayano reveal herself. That made Ayano feel alive.

But then, of course, twists and turns have come their way. Will their friendship still survive or be forgotten and lost?