What Should I Do About My Archenemy Wanting to Mark Me?

As his sworn enemy, Jiang Shen had been annoyed by Ye Bai for years. The guy had a terrible personality and looked down on everyone, yet he had won the favor of the most beautiful Omega at the entire Elite Esper Academy just because of his looks. Jiang Shen had thought that someday he would trample Ye Bai underfoot and show off, making him understand just how formidable he was! But just as he was about to succeed, Ye Bai suddenly died. He died without leaving a trace, and everyone was glad to see him gone. Yet the outcome made Jiang Shen so furious that he vomited blood and passed out. When he opened his eyes again, he discovered that he had returned to his school days. To uncover the truth, Jiang Shen decided to try a different approach and cling to his former nemesis, until In the break room, Jiang Shen pinned him against the wall, his expression dark. His highly intimidating and aggressively dominant Alpha pheromones rapidly spread through the room. "...You're an Omega?!" Ye Bai's face turned pale, then red. He gritted his teeth. "Let go. Get away from me!" Jiang Shen's expression changed several times before, at last, he put on a completely innocent smile. "A-Bai, it must be exhausting to keep this secret, right? How about I help you?" Ye Bai: "..." CP: A spoiled rich heir who is secretly calculating and bends himself with his own overactive imagination, a loyal dog of a gong X an aloof, ill-tempered beauty of a shou TIPS: 1. Fictional modern urban esper setting 2. An Omega pretending to be an Alpha, a fake Alpha-Alpha romance. 3. The gong is reborn. (Blurb is provisional, screenshot taken on 2021.3.29) Theme: Companionship is the longest-lasting declaration of love