Leon and Emil used to bully an ugly, nerdy classmate called Yong Soo in primary school. Once, they caused him to trip downstairs and break his bones. Yong Soo disappeared afterwards. Years later, both Leon and Emil turned out to be rebellious omegas. The Korean boy returned with an entirely different look and personality. He has also come back as an alpha, vowing to hunt Leon down. Omegaverse. Human AU. School Setting. Possible OOC. Pairing: Yong Soo x Leon (KoHo), Emil x Leon (IceHong), Mathias x Emil (DenIce)