No? Commander, Why Are You Such a Little O!

[Double male protagonist × interstellar × next year × abo × double strong] O outfit B commander X top A prince Chen Yan is an orphan. He thought that he was not expected to be born. He had a good friend, and his only wish before his death was that Chen Yan live well. Chen Yan also lived well until he was 27 years old. On his 27th birthday, he got into a car accident just after getting off work from school and time-traveled into a person with the same name, surname, and race as him. In this world of advanced technology, humans have six genders. The monarchy was also restored, and the entire universe was almost developed. A galaxy was a country, and the original owner's country had twelve galaxies. The day after he arrived, Chen Yan was told by the emperor that he would be sent to the seventh galaxy to recuperate and teach. Chen Yan went to work unhappily because he was a professional counterpart. I also encountered a bad relationship...