I Got Pregnant by the Young Master

DH Group Chairman's youngest, long-awaited son, Choi Yoon, is pregnant. He's been frail and cherished within the family his whole life, and this happened only a semester after he started college. "Which bastard is it! Which son of a bitch knocked up a twenty-year-old kid!" "Secretary Kang, bring me the list of all the alphas who've had contact with Yoon, even once. I'll take them down one by one." The Chairman was enraged, and his alpha brothers were furious. Kang Seung-ju, Choi Yoon's personal secretary who was always by his side, had no idea at this point. That he was the son of a bitch in question. But it was strange. It's true that something like that happened just once, But how...