My friend's younger sibling likes me too much.

Third-year fervent omega Min Yi-rok. After his twelfth failed blind date, he went to his thirteenth without much expectation. But then he sees a familiar face? “Dami, what are you doing here?” Yi-rok asked, his face drained of color. His childhood friend’s younger brother, Yu-dam, opened his mouth, his face flushed bright red. “I told you I’d come get you. I came to keep my promise.” “…….” “I’m going to marry you, hyung. Don’t even think about seeing anyone else.” With every word Yu-dam spoke, Yi-rok’s expression grew increasingly bizarre and grotesque in real time. He asked again, awkwardly, as if he truly had never heard of such a thing. “…When did you ever make such a promise? I don’...