Saetbyul (omega), who keeps his sex hidden from others, comes to realise that his classmate, Yul (alpha), is his soulmate. However, Yul believes that Saetbyul is a beta and therefore defines his feelings for Saetbyul as friendship. Soulmate or not, Saetbyul has no intention to pair-bond with an alpha; he ignores his own feelings for Yul. One day, Jaeyoung (omega) transfers into their class and is not hesitant to reveal his sex. Having known that Jaeyoung is an omega, Yul falls in love with him..
Edgar Seymour, a student at the University of Somerset and son of the foundation president and trustee of one of the world's most important elites and sole heir to the Duke of Seymour, has a secret that must never be discovered. He's an Omega! To change the twisted world in which only alpha males can be heirs, he decided to lie and live like an alpha until he gets his grandfather's job. One day a crisis comes to Edgar, who is uneasy about imitating such a perfect alpha.
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