Alpha Injection

“Alpha Injection”—an injection that induces hormonal mutations to bestow new traits. Host athlete Kang Su-Chan visits a secret, abandoned hospital to erase his Alpha traits and be reborn as a Beta, but he is knocked unconscious by a mysterious man named Lee Hae-Su and soon finds himself subjected to biological experiments aimed at reviving the Alpha Injection, which has now been completely lost. Ha-Su has a cold-blooded demeanor, as if not a single drop of blood would come out even if he were stabbed. But in the eyes of Su-Chan, who is obsessed with men, he was nothing more than another handsome young man. Ha-Su’s resolve begins to waver as the host, driven by his frivolous and arrogant self-interest, makes his move… (Source: Lezhin, translated)