Tsubasa-chan, You’re... My Killer Match is one of my favorite manga, but I'm having hard time finding anything similar.

Usually these horror/mystery mangas are filled with just cute girls doing gore sh*t, and I don't have any problem with gore, but if a manga has nothing to offer it won't keep me thrilled.

The only one I found and got me hooked was Ore no Genjitsu wa Renai Game.