In this town, there are trees called "The Couple Cherries" - various cherry tree that entwine each other.
"If you kissed with your lover under this tree, you'll be bonded forever..."
That is the legend of The Couple Cherries.

Seiya, a high school student, was passing the same old boring days with his friend Hina.

Nothing had changed for a while, and everything had been stable... until that special day. Satsuki, his childhood friend, had finally came back!

Thus, the story begins with Seiya and the two girls. Who will he develop a romantic bond with in the end?

[Edited from official website]