※Note: The title and synopsis have been slightly modified. The main story content remains unchanged.

Yamashita Yuto and Watanabe Asahi. They are childhood friends living next door. In high school, they were known as "the school's most lovey-dovey couple" due to how well they got along, and they both liked each other, but...

Yuto was hung up on a past event and couldn't find the courage to confess to Asahi.

Asahi, too, had no intention of confessing first, in order to keep a promise she made with Yuto long ago.

However, one incident changes Yuto's mind.

「By the end of this year, I'll gain more confidence and confess to Asahi. So please wait just a little longer!」

This is about two childhood friends who are deeply in love and both clearly understand that mutual affection,

yet due to various overlapping circumstances, have longed to be together but haven't been able to date until now.