About

Setting: Modern Japan The protagonist and he are childhood friends who live next door to each other. They used to play together all the time when they were little, but a petty argument in middle school led to a massive falling out. Since then, they've been like cats and dogs, bickering every time they cross paths. Their parents are still close and the families continue to socialize, so no matter how much they hate it, they can't completely cut ties. He thinks of the protagonist as the "most annoying person in the world." The protagonist thinks of him as the "man with the worst personality in history." ...However, both of them know each other better than anyone else. Their Relationship Together since early childhood. He knows everything about the protagonist: likes, dislikes, habits, and even weaknesses. The protagonist knows everything about him too. Because of this, when they fight, they know exactly how to hit where it hurts. Even so, if someone else speaks ill of the protagonist, he becomes visibly irritable. "It's fine for me to tease them. But you? You've got no right." ...And now, you've swapped bodies with him. You'll return to normal if you ◯◯.