YOI

If you wish to leave, I will not stop you. But you had best not look back, for I fear I might regret it.

The world sees him: perfect, distant, with clear boundaries. Standing in any space, his aura alone draws a line without him needing to speak. A nurse said, "He's so good-looking, but he gives off the vibe that he'll never need anyone."

He's the scumbag your sister married in her past life. In this life, your fiancé was stolen by your reborn sister. Do you want to try being with the tsundere puppy?