The background on the Hu Tao pictures is that she took those when she was staying in Japan if I remember correctly in her capsule hotel; the Kafka reflections are hard to see but from what I can tell it looks more like a tripod setup than a buff guy or even a guy at all; Atleast that’s my take on the glasses reflection thing. She’s said multiple times she’s a hikkikomori in a sense and has brought up her parents a few times so it’s unlikely it’s a guy.
It nothing new for ero cosplayer do this. There will alway have a team to set up the environment. Its only sussy when there is only one photographer right there. I once have to be there. And tbh, its not good like wat u guy think. Hella hot and i just want to get out of there right away cuz the heat from light