[Crossover] Please Don't Make Me Your Little Brother!

As far as I can tell, this is a Douluo and Battle Through the Heavens fanfic. I'm not sure what will happen later. I'm terrible at writing introductions. In a nutshell: A hapless kid who transmigrates while playing a game gets tossed by the System into different worlds to clear their stages. It's a miserable story. A quick disclaimer: This story came about because I read a bunch of fanfics and got the urge to write one. The values may be a little questionable, there are lots of golden fingers, and it may be a bit self-indulgent, so read with caution!