Minsung is the school’s most popular dominant alpha. One day, he loses his inhibitor and cannot overcome his rut. With a faint conscience, he ends up having sex… But the person he has sex with is someone attending the same liberal arts class as him, Inseo. Minsung slowly begins to fall for Inseo’s bright image. He thought his encounter with Inseo was naturally alpha-omega, but Inseo’s a beta…?!