All I can say is, kid, you don't know if you are lucky or unlucky when you meet Nagi.
Fortunately, you have found a good lover.
Unfortunately, you met a good lover who only lasted for one night.
Part of what Xiangtou said before was true, that is, Nagi did not have a boyfriend, but only bed partners.
Some people would say that he is really an irresponsible person, but nothing happens without a reason. As for what it is, Nagi has never revealed it to others, so others naturally don't know.
But fortunately, Nagi is a person who lives in his own world. He doesn't mind or care about other people's judgments of him.