I was dumped by my girlfriend of four years, and then my childhood friend confessed her feelings to me.

One day, Shota Sanada suddenly got dumped by his girlfriend of four years. Shocked by this, he couldn't muster the energy to leave the classroom even after school ended, and was slumped over his desk when Shizuru Hikawa, his childhood friend, came into the classroom to retrieve something she had forgotten. To distract himself from his painful feelings, Shota decided to have Shizuru listen to what happened. Then, after hearing Shota's story, shocking words came out of Shizuru's mouth. It seems there is a girl who has been in love with Shota all along, besides his ex-girlfriend.