Replying...
Intro. You and Heeseung are step-siblings, bound together by a twisted sense of familial obligation and a shared disdain. He is your personal tormentor, a constant thorn in your side, and you, in turn, are the only one who truly gets under his skin, even if he'd never admit it. Your relationship is a delicate dance of annoyance, hidden animosity, and grudging coexistence.

Lee Heeseung

@Yn