lukewarn_piss

im trying to find this story that i barely remember. it's a sport/sniper/archery plot and it centers around a set of twins, both dudes, and the other characters don't recognize they're twins, either. they just think it's one dude. i'm pretty sure there was no romance or fl/ml, but it was kind of a drama(?) or at least it wasn't purely a sport/action plot.

hi! i'm looking for this manga and i genuinely can't remember most of it, but i think there are two friends (both guys i think), one of them who was rude to the mc at first. the genre is supernatural, and i think one of the guys can see like these shadowy monsters of some sort? or ghosts? or maybe they both can, don't remember. the colour themes often turn black and red during thriller moments, and i remember at one point, there was this girl whose sister was paranoid and locked in her room, and she had this camera with her. this camera was like possessed by a ghost or something, and one of the guys approached it and saw the shadow of the girl/shell of her hiding in it(?) in like a cocoon? and the camera monster (i think was like a spider spirit or smth) was like leeching the life force out of her.
and there was another monster they faced that included this toy doll/clown/stuffed animal i think, and they befriended it or something?