- Darwin's Game
Similar to Mirai Nikki (Future Diary) a video Game App that can not be deleted starts a survival game and gives special powers.
With no way to quit or drop out of the game there is only one choice. To continue and try to win in order to unravel the mystery behind the origin and purpose of the App.
2. Sun Ken Rock
Written by Boichi who is renown for his art work on Dr. Stone. The story follows ken who is recruited to become the boss of a gang. quickly rising up in reputation as the strongest gang in the underground world of crime.
Similar to black lagoon although Ken is only motivated by a strong sense of justice and taking down bad guys.
3. Life Is Money
It's a dark gambling tournament for a chance to win a high cash prize.
The limit of sanity is tested for those who are desperate for riches.
4. Historie
Created by the same author who made Parasyte. Based on ancient Greek and Roman civilization it revolves around historical figures such as Alexander the Great and Aristotle.
5. Gantz
a science fiction based seinen following kei kurono who after dying awakes in a room and given a super suit as well as advanced technological weaponry upon given orders to hunt down aliens.
Others after dying find themselves in the same room having to cooperate together in order to fight the ever increasingly strong enemies they face.
Encountering a wide variety of opponents including mutants, stone statues, aliens, vampires, etc.
6. Alice in Borderland (Imawa no Kuni no Alice)
Another psychological manga like No Game No Life. Transported to a post apocalyptic world After the main character makes a wish while observing fireworks.
I don't want to spoil it but I will say that the ending has a very interesting plot twist.
7. Vagabond