ch8- i think i have read enough chapters to judge. and the verdict issss.... it's ok. as usual in manga, women are treated as plot device/fanservice/put on a pedestal. most of the men are cartoonishly evil antagonists. it's also pretty edgy. the worldbuilding is neither super complex nor has a lot of depth. the storytelling just doesn't generate enough curiosity in me about the mystery surrounding the 'parasites/aliens'. however, I will say I like how the parasitic forms are inspired by myths/stories around the world. also, does his powers even require him to be a doctor? cuz all he has to do is to be infected by whatever, his body regenerates/produces antibodies on a superhuman level, then he spray blood on said whatever to "cure" them. mc himself isn't really a interesting enough chara to force myself to continue reading- he's supposed to be seen as a maniac who's actually a good person, but I've read more compelling pyschos than he'll ever be.
Fuji no Yamai wa Fushi no Yamai