Wait, I'm confused. Did he get hallucination or he's someone who's repeating the timeline. Or did he is the one who is a monster and somehow he didn't know it himself.
The blonde guy is some sort of monster that has killed the holden guy in many different timelines and mc is starting to remember those other timelines where he witnesses holden die to the monster. The journals were all supposedly written by him in the previous timelines.
End it already, please... If this story ended here, it would be a happy ending. No confusion, no more drama, and no more foolish things he would do... Please, it would be the best ending for now
Hakiki is being Yandere magnet