On a midsummer day in the middle of summer, when the record-breaking heat wave continued, I gave up on my dream of becoming an actor and returned to my parents' house for the first time in a long time, and I met my childhood friend Ai again for the first time in several years. Ai, who became a married woman, had increased sex appeal and became beautiful, but her innocent laughing appearance was the same as when she was a child. Ai treats me the same way as I used to, but I've always liked her, and I'm disgusted with myself for not being able to grow up. Whether or not she knows my feelings, Ai, who has a bewitching smile, attacks me as an extension of her mischief.