Ai, a young girl with shut-in tendencies, who tries not to interact with others. She keeps one of her eyes hidden behind her hair. One day, she happens to stop by a deserted arcade, where she meets "Aka." Spinning the gacha at their urging, she acquires a "Wonder Egg," and from that moment, her fate begins to change...
“I want to be an ordinary person! Someone who's normal! I've already told you I don't have my power anymore!” Blade is a carefree transfer student whose only goal is to make friends with his classmates at Rosewood Academy, a school for heroes-in-training. On the surface, Blade seems like an ordinary boy, but he is hiding a miserable secret with seeds that start long ago, with the defeat of the Demon King at the hands of the Great Hero. Join this new class of friends as they unravel the mystery surrounding Blade, and journey toward becoming full-fledged Heroes!
Finally, the day of Mai's high school graduation has arrived. While Sakuta eagerly waits for his girlfriend, an elementary schooler who looks exactly like her appears before him. Suspicious, and for all the wrong reasons... Meanwhile, Sakuta and Kaede's father suddenly calls, saying that their mother wants to see her daughter. She was hospitalized because Kaede's condition had been too much for her to bear, so what could she possibly want now?
