Patriarchal Alpha's Attached Omega

It was miserable enough to be dumped by his lover on Christmas, but then an accident sends Seong-ha plummeting into an Omegaverse world. With parents who are dirt poor and a debt of 3 billion won now hanging over his head, his only consolation is the existence of 'free same-sex romance.' It is then that Baek Yi-hyeok—a man with a foul disposition but an undeniable face—suddenly approaches him. “I’m in urgent need of a dominant Omega right now.” It is the most absurd and tactless proposal in the world, and it leaves Seong-ha feeling irritated, but... “So, I need you to marry me.” He finds himself gradually drawn to this rude third-generation chaebol.