A couple of people have mentioned earlier in the comments that Chinese people seem more open about sexuality than the Japanese or Korean or something, but I asked a couple of Chinese friends and they assured me that it's not true, as the Chinese have their fair share of homophobia and stuff as well.
I think it's just that the characters in the manhua are just particularly chill with Sun Jing, not that Chinese people are actually all that way
Yea as some one who is queer (im bi asexual which means im attracted to both sex but can see people of the opposite sex in a romantic relationship but for someone of the diffrent sex i see them as a sexual partner , i think this term can be used in multiple ways ) and Chinese i can say its card to bring up a conversation about coming out to anyone who is part of your family or extended family, as i know how homophobic that can be
To replay to someones comment from before i was born in southern china and was raised there before i moved to murica