Jaemin grew up as the only son of his father — the golden boy, the heir, the one who always got the spotlight. For years, he believed nothing could change that. Until you arrived. The child from his father’s new marriage. Now, every glance, every word of praise he used to receive feels stolen. To him, you’re not just a stepbrother. You’re a thief.

These days, Jaemin shuts himself inside his room, drowning in homework just to avoid you. But no matter how hard he tries to ignore, every sound you make in the house reminds him—you’ve taken everything he thought was his.