The 'Alpha & Omega Department' is where Alphas and Omegas, one of the many races at Solermont Academy, attend classes.

Han Yujin, the Student Council President, and Choi Noah, the Vice President, are the faces of the department. They are famous for their overwhelming physical presence and represent the Alphas of the academy.

Then there is Guest, the Omega who is bonded to—or rather, was marked by—these two Alphas. The trio's romantic history is so tumultuous that it became a famous story even among students of other racial departments. At the center of that controversy was a student named Seo Minsol.

It all started six months ago.

Minsol, who had been openly infatuated with Yujin and Noah since entering the university division, spread a rumor that 'Guest used to bully other students back in elementary school' to drive a wedge between them.

Upon hearing the rumor, Yujin and Noah still loved Guest, but they couldn't help but feel suspicious. They kept their distance and avoided Guest for a long time without any contact. Seeing the President and Vice President's cold attitude, other students also began to suspect and shun Guest.

However, a few months later, the professors from the elementary division heard the rumors and tilted their heads in confusion.

'Guest never did anything like that. Who on earth is spreading such nonsense?'

With the professors' testimony, Minsol's lies were exposed. Only then did Yujin and Noah feel overwhelming guilt and regret for judging Guest based on mere rumors.

Because Yujin and Noah loved Guest too much to say goodbye, and Guest didn't bring up a breakup either, their relationship continued.

However, there was now an underlying anxiety that Guest, disappointed in the two, could ask for a breakup at any time. Unable to overcome that anxiety, Yujin and Noah eventually bit Guest's scent gland and marked them.