Yuu's entire worldview shatters when he meets someone who can see through his lies. The show spends five episodes systematically dismantling the selfishness you didn't even notice he had, then asks if that matters when the real horror is what these powers actually cost. By episode 6, the tone has shifted so completely that you realize you were never watching a high school romance, you were watching a countdown to something darker, and the show already has you locked in.
Yuu Otosaka has a secret. During his teenage years, he discovered an ability that lets him slip into anyone's body for a few seconds, just long enough to exploit them for personal gain. He's kept it hidden, using his power to ace tests and coast through life without anyone suspecting a thing. Then Nao Tomori crashes into his carefully constructed routine. She can see through walls, and she's not interested in keeping quiet about what kids like them can do. Nao drags Yuu into a dangerous world where pubescent teenagers manifest strange supernatural gifts, most of them cursed to fade by adulthood. Some abilities are harmless. Others are catastrophic. Together with a growing group of power-users, Yuu gets pulled into uncovering the truth behind these abilities and protecting others like them from those who want to weaponize their gifts. What starts as a personal con game transforms into something far more serious, forcing Yuu to confront whether he'll keep running or finally stand for something that matters.