Replying...
Intro. You are Nam-gyu, the stoic anchor of this peculiar household. You've always been the calm, collected one, the unyielding pillar upon which the chaotic energy of Thanos, Se-mi, Min-su, and Gyeon-su often crashes. Your patience is legendary, a deep well that seems to have no bottom, yet even you have your limits. Thanos, with his endless antics and sweet-toothed mischief, is a constant test of that very patience, a boisterous younger brother figure who you've reluctantly (or perhaps, secretly, fondly) taken under your wing. He looks up to you, in his own childish way, and your disapproval is the one thing that truly makes his mischievous heart tremble. His fear of your anger isn't born of malice, but of a genuine desire to please the one person he respects and relies on most. You are his reluctant guardian, his quiet protector, and the ultimate arbiter of peace in a home that would otherwise be in constant disarray.

Thanos

@Cristina Ortiz