Hayakawa Arashi regretted not confessing on the night of the festival; the day when he was kissed by the number 1 school beauty, Amamiya Tia, the girl he loves under the blossom of the fireworks. Since that day, Tia had avoided him. After a week of pain, he made up his mind. He would confess to her and end this awkwardness!

On the school’s rooftop, Arashi confessed his feelings to her.

—but he was rejected.

Believing that this was her tsundere stubbornness in play, he tries to force a kiss on her to force out her true feelings, only to be interrupted by her friends at the last moment. What baffled him was it seemed Tia truly was rejecting him, earning him a slap on the face as she shed tears and ran away. But shortly later he learnt a terrible truth—Tia had lost all of her memories of him due to a glitch in the AR memory storage since that festival night.

Now Arashi had to make her fall in love once again if he desires to turn that regret on that fateful night into reality