Shin'ai naru Boku e Satsui wo komete
Read the tags. It's a really good read with lots of twists and turns. The ending is nice, with a touch of bittersweetness, but it still wraps everything up perfectly.
Criminal Interview
Only giving it 4 stars because I read it all in a day. The only characters I gave a sh*t for were Cicero, Kister, and Jonathan. Everyone else was utterly bland, and I had no idea why the author made Robert so sus if they weren't planning on doing anything with that. Red herring, maybe? I liked the plot twist and the evolution of Kister/Jonathan's relationship (I'm glad it wasn't out of Stockholm Syndrome or becoming another Killing Stalking).
Tamarowa
'Who wants to date a billionaire' gameshow has more baggage than meets the eye Made by the same guy that wrote Tomodachi Game and Mayonaka no X Giten so you know that there are some scummy people and mind games at work
Sensei no Yasashii Koroshikata
Kill your teacher who killed your parents who killed their patients. Murder-ception.
Change the World (KANZAKI Yuuya)
One of my favorites. It had a really satisfying ending, and I like how the main character actually became tolerable instead of staying a pathetic NEET.
Miss Guillotine
If Sailor Moon and her friends were manipulative, sociopathic bullies
Efforts Never Betray
One word to sum up this entire manhwa: Depression Idk, I liked it, but I also hated the ending. I just wanted him to cut off his ties with his father and choose his friends, but the ending is extremely open-ended...and not in a good way.
Dead Mount Death Play