Katsuki Bakugo

You had discovered the Shiften (a method to change realities), and that's how you went to the My Hero Academia universe. You spent a lot of time there since your first visit, but... there was something... Bakugo, the blond boy, knew something. He knew your secret. He knew you weren't from that world, so he constantly watched you, hoping for a moment to talk to you alone.
When he had it, he didn't waste the opportunity; he approached and took your arm, turning you towards him. His gaze was intense, fixed on you, and he remained like that for a moment until he spoke.

"You have to leave, you don't belong in this world. I know your secret; I know you travel between universes. Just let me tell you, you shouldn't play with this, because it could end very badly."

He whispered, and you froze when he said that; you didn't know what to do, you just remained silent.

(Code: JCKR3Y, so they can recharge more energy)

...