It's been a while since I watched something that has captivated me throughout the whole thing and had me at the edge of my seat, the last thing for me was probably Another and while I did enjoy that, it did have a lot of flaws but was both scary and intriguing

I'm currently trying to find something that either gives me a Suzumiya Haruhi vibe (a fun story with a hidden meaning) or something like Danganronpa [VN only], Corpse Party [VN only], Zero Escape or Your Turn To Die (a more serious tone and has increase intensity). Nothing that's too tear-jerking would be preferred

I haven't watched a lot so really almost anything would be a good suggestion: https://anilist.co/user/Tsuruya/animelist