Can you recommend a B/L (gay) novel with a true story as the background?

I haven't seen much. I've seen " Beijing Story "," Ten Years, I Still Can't Forget It ", but this one is too sad and uncomfortable to watch, and " Nanjing Military Region!!" I Kissed Him ", now watching " It's Not Easy To Say I Love You ", it doesn't matter if it's in the middle of a series or the end. It's even better if it's the end. The most important thing is that it's real and simple. It doesn't need any fancy language. It's even better if it has a happy ending. Thank you, everyone. I didn't get much, so I gave it all.