高校生Tōma Suzuki was left isolated when his childhood friend, Saori Azusa—with whom he had promised a future together—abruptly and coldly told him she wanted to end their relationship.

Carrying his despair, Tōma returned to the classroom to go home alone, only to find his classmate, Suzuha Kamiya, there. She asked him to be her boyfriend, and by circumstances, they began to date.

Once they started dating, his childhood friend, who had often been cold towards him, began to act differently—

※2025/06/19 The title has been changed.

Original Title

【My childhood friend, with whom I had promised a future, dumped me… but ever since I started dating the school's beautiful girl, my childhood friend has been acting strange.】