If you like this kind of stories and you're okay with reading novels, check out infinite flow novels, I would especially recommend "I rely on kisses to clear survival games"(this one have seme's soul fragments trapped in several horror games as notorious villains and the uke have to make them fall in love with him)
and "death spiral" (this one have the closest premise with this manhwa, uke's character resetting when he dies until he succeeds, the seme would reset his memories just like the others but he would become more yandere as more game reset comes as he may or may not remember some fragments of the uke dying in every reset)
Both of the novels you mentioned sounds very interesting . I'd like to read them. But where can I read them ? If you don't mind can you share the link ?
You can search them up in NovelUpdates, there you can read the tags, synopsis, reviews, and the translation group where you can read it
I like how this manwha don't go traditional bl manwha formula and actually give the mystery plot to us . So refreshing to read.