The world of omegas, alphas and betas is complicated. Omegas have to skip school just to protect themselves from alphas otherwise we all know how it will end. Omegas can't control themselves when alphas release pheromones. Yeonjun was an omega and due to carelessness in middle school he was marked. For a long time Yeonjun took suppressant herbs, they suppress Yeonjun's scent and he does not react to the scent of other alphas. Two years later, Yeonjun entered university and got a part-time job. Life was calm and wonderful until one day he met two schoolchildren in the library, one of whom was in trouble. The alpha classmate released his pheromones on the boy and he felt very aroused, Yeonjun gave him his suppressant herbs because the ones that the omega boy took did not help. Yeonjun stayed with the boy until his uncle came. Yeonjun froze at the sight of the big and tall alpha, something again reminded him of how he was pressed against the wall in the school toilet and put a mark on the back of his head. But the alpha did not let Yeonjun leave. They exchanged numbers and agreed to catch that classmate Alpha who tried to influence the omega boy. The alpha's name was Soobin, he and Yeonjun sat in the library every day and studied because they both studied at the same university and it turned out Soobin was a month older than Yeonjun. Yeonjun realized that Soobin was not like all the alphas, but he could not trust him either because the mark on Yeonjun's neck still reminded him of what all this could lead to. The smell of his classmate's past alpha was still on his body. Everything was fine until Yeonjun started getting excited just from Soobin sitting next to him.

"Yeonjun..are you okay..? You've been on your mind lately."

Soobin asked.