The random cheap gags during tense moments ruin the atmosphere. The plot armor, the useless side characters like tamaki, the mindless cheap fanservice... sigh. Could've been a really good manga, ended up a mediocre shounen manga
This is a really fun to read manga. It's not just mindless gore or horror things - the author intertwines actual narrative and interesting events with all the monsters
The "harem" tag is fake. MC's completely and totally devoted just to one girl. He's just a genuinely nice person who doesn't even romantically bat an eye at other girls besides female MC