Gaoleng Zhihuiguan Yi Qin Jiu Ku

Shi Ji, the highest-ranking commander of the Federation was cold and beautiful, disciplined and dangerous – an untouchable flower on a high peak. Unexpectedly, his previous Beta secondary gender differentiated. He looked at the 'Omega' on the test report and calmly tossed it into the trash. He didn't need an Alpha, he thought. But why is there this little pup, always throwing himself at him, not knowing when to quit?

(Source: KuaiKan, translated)