Manga like Otona Taisen

20 Seiki Shounen

Also known as 20th Century Boys.

Status: Finished
Genres: Drama , Mystery , Psychological , Sci-Fi , Thriller

Humanity, having faced extinction at the end of the 20th century, would not have entered the new millennium if it weren't for them. In 1969, during their youth, they created a symbol. In 1997, as the coming disaster slowly starts to unfold, that symbol returns. This is the story of a group of boys who try to save the world.

For Kenji, a simple convenience store manager who once dreamed of becoming a rock 'n' roll musician, a host of memories from his past come rushing back when one of his childhood friends mysteriously commits suicide. Could this new death be related to the rise of a bizarre new cult that's been implicated in several other murders and disappearances? Determined to dig deeper, Kenji reunites with some of his old buddies in the hope of learning the truth behind it all.



Tags: Coming of Age , Ensemble Cast , Seinen , Politics , Achronological Order , Fugitive , Dystopian , Conspiracy , Cult , Pandemic , Time Skip , Post-Apocalyptic , Terrorism , Found Family , Male Protagonist , Detective , Musical Theater , Philosophy , Cosmic Horror , Female Protagonist , Historical , Tragedy , Dissociative Identities , Augmented Reality , Police , Robots , Cute Boys Doing Cute Things , Nudity , Transgender , Foreign , Time Manipulation , Homeless , Twins , Urban , Crossdressing

SANDA

Also known as SANDA.

Status: Finished
Genres: Drama , Mystery , Slice of Life

In a near-future Japan, Christmas has faded into myth, and the birth rate has dropped so dramatically that children are now the most precious commodity. Society has artificially extended adolescence to preserve their youth, and traditional holidays, like Christmas, are a mere legend of the past.

Volume 1 of SANDA introduces Sanda Kazushige, a middle-school student who unexpectedly becomes entangled in a strange and dangerous mystery. When his classmate, Fuyumura Shiori, accuses him of carrying a curse that could help find her missing friend, Ono Ichie, Sanda's life takes a dramatic turn. Together, they embark on an incredible adventure to unravel the truth behind Ichie's disappearance and uncover the hidden magic of Christmas itself.

As they delve deeper into the mystery, the duo faces external threats and internal challenges—questions about loyalty, courage, and the power of belief. Along the way, they confront the true meaning of friendship, trust, and the possibility of magic in a world that has all but forgotten it.



Tags: Male Protagonist , Female Protagonist , Dissociative Identities , School , Primarily Teen Cast , LGBTQ+ Themes , Ensemble Cast , Slapstick , Surreal Comedy , Shounen , Henshin , Shapeshifting , Gender Bending , Alternate Universe , Nudity , Amnesia , Dystopian

Yakusoku no Neverland

Also known as The Promised Neverland.

Status: Finished
Genres: Drama , Fantasy , Horror , Mystery , Psychological , Thriller

Emma, Norman and Ray are the brightest kids at the Grace Field House orphanage. And under the care of the woman they refer to as “Mom,” all the kids have enjoyed a comfortable life. Good food, clean clothes and the perfect environment to learn—what more could an orphan ask for? One day, though, Emma and Norman uncover the dark truth of the outside world they are forbidden from seeing.



Note: Nominated to the 22nd, 23rd, and 25th Annual Tezuka Osamu Cultural Prize.

Tags: Survival , Body Horror , Primarily Child Cast , Demons , Dystopian , War , Found Family , Guns , Female Protagonist , Shounen , Politics , Coming of Age , Alternate Universe , Travel , Ensemble Cast , Conspiracy , Anti-Hero , Time Skip , Gore , Philosophy , Male Protagonist , Amnesia , Rural , Heterosexual , Augmented Reality , Suicide

Egao no Sekai

Status: Finished
Genres: Drama , Horror , Psychological

Collection of horror stories.

Tags: Anthology , Shoujo , Body Horror , Primarily Child Cast , Dystopian , Bullying , Cannibalism , Zombie , Youkai , Ghost , Pandemic , Tragedy , Primarily Female Cast , Female Protagonist , School , Curses

The Big O

Also known as The Big O.

Status: Finished
Genres: Action , Drama , Mecha , Sci-Fi

The official comic adaptation of Bandai's Cartoon Network hit, a stylish "manga meets film noir" story which goes BEYOND the plot of the TV series! Paradigm City is the city of amnesia--40 years ago, SOMETHING happened that wiped out the memories of the residents, forcing them to recreate their culture from scattered fragments. In this world only 40 years old, Roger Smith is a negotiator--a go-between for police, citizens and criminals in high-risk diplomatic situations. But something else survives from the forgotten past. They are the MegaDeuses--giant robots created by the city's former inhabitants, or perhaps by the forgetful citizens themselves. When crime and madness strike, Roger Smith brings the guilty to justice with the giant robot called THE BIG O.



Tags: Noir , Real Robot , Robots , Seinen , Foreign , Butler

Old Boy

Also known as Old Boy.

Status: Finished
Genres: Action , Drama , Mystery , Psychological

Ten years ago, they took him in. He doesn't even know who. And for ten years, he has been confined in a private prison. He doesn't know why. For ten years, his only contact with the outside world has been a television set and the voices of his jail mates. In time, he lost himself. He changed...transformed himself into something else...something hard...something lethal. Suddenly, one day his incarceration ends, again without explanation. He is sedated, stuffed inside a trunk, and dumped in a park. When he awakes, he is free to reclaim what's left of his life...and what's left is revenge.



Includes an epilogue in the final volume.

Tags: Revenge , Noir , Crime , Suicide , Amnesia , Urban , Bar , Fugitive , Memory Manipulation , School , Seinen , Male Protagonist