'I had a one night stand with the first person I met, but I got pregnant.' 

Everytime this omega had a boyfriend, the relationship always ended up with him being cheated on and in the end, he even got crushed by hearing the words, “You are an omega, but I’m not attracted to you". Hae-Su, who was chugging alcohol while raging to his friend who comforted him, got wasted on a drug, and to make matters worse, his heat cycle started. Alpha Do-Geon, who was in the same pub, notices Hae-Su's condition and tries to help Haesoo and get him away from the place but he is seduced by Hae-Su's pheromones and they end up spending the night together. 

In the morning, as soon as he wakes up, Hae-Su hastily ran away and finds out that he is pregnant 4 weeks later. Hae-Su decides to raise and make the child happy by himself. After 4 years, Hae-Su and Do-Geon are reunited... 

Note: Chapter count includes 3 extras.
 
(Source: Lezhin, translated)

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