The brother is such a narcissistic POS. Notice ALL of his lines of dialogue and thoughts are about HIS happiness, wants, feelings, and desires. He's literally not even capable of seeing his own privilege and putting himself in the shoes of his brother who was literally thrown away by their father and forced to grow up a slave. He's just mad that he can't have this perfect fantasy that HE always dreamed of, so he throws a tantrum anytime his manipulations and false niceties don't work out. I don't sympathize with him at all. Screw him!
Bongchon Bride