Top 5 Light Novel Like Sonoiro no Boshi wo Tore: Hackers' Ulster Cycle [2026 List]

Sonoiro no Boshi wo Tore: Hackers' Ulster Cycle It is also Known as: その色の帽子を取れ -Hackers' Ulster Cycle-, Sonoiro no Boshi wo Tore: Hackers' Ulster Cycle

Genres: Drama , Science Fiction , Thriller

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5. Freezing
4. Planetes
3. Eden: It's an Endless World!
2. 21st Century Boys
1. Gantz

5. Freezing

Extraterrestrial beings have invaded our garden world, hellbent on wiping humanity off the face of the planet. The only hope is a specialized force of genetically-engineered female “Pandoras” and their male partners known as “Limiters,” who represent the last line of defense against a horrific alien force.

Kazuya Aoi is a Limiter who enrolls in a prestigious academy that trains genetically-engineered soldiers. Having made a promise to his Pandora sister who died in battle, Kazuya must overcome his sadness and become the best he can be. His first major obstacle is a frigid second-year student known as Satellizer el Bridget, who has remained undefeated in combat simulation. Does Kazuya have what it takes to beat her, while readying himself for an impending war?

Freezing is currently publishing and has Chapters. It is also Known as: フリージング, Freezing Second Season

4. Planetes

Haunted by a space flight accident that claimed the life of his beloved wife, Yuri finds himself six years later as part of a team of debris cleaners on a vessel called the Toy Box charged with clearing space junk from space flight paths. The team consists of Hachimaki, a hot shot debris-man with a sailor's affinity for the orbital ocean; Fee, a chain-smoking tomboy beauty with an abrasive edge; and Pops, a veteran orbital mechanic whose avuncular presence soothes the stress of the job.

Planetes has finished publishing and it has 27 Chapters. It is also Known as: プラネテス ΠΛΑΝΗΤΕΣ, Planetes

3. Eden: It's an Endless World!

In the panic surrounding a worldwide pandemic which kills 15 percent of the population and cripples many more, a secret organization, the Propater, topples the UN and seizes control of much of the world. A boy and a girl, raised in an abandoned virology research center, immune to the virus, are attacked by the Propater and escape. 20 years later the boy is the most powerful drug lord in South America. He aids his son from behind the scenes as he evades and eventually with the help of mercenaries from Nomad (some of them former Propater operatives) fights the Propater. As the plot develops focus shifts away from the main character and develops many sub-plots dedicated to terrorism, Human-improvement, the struggle of the developing countries and the power battles between the drug cartels and Propater.
Based strongly on Gnostic mythology, all major characters are named after gnostic deities, and have analogous roles.
Warnings: Eden contains a lot of very graphic violence and some sex scenes.

Eden: It's an Endless World! has finished publishing and it has 127 Chapters. It is also Known as: EDEN ～It's an Endless World!～, Eden: It's an Endless World!

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2. 21st Century Boys

Growing older is pretty rough and Kenji is finding out just how hard it can be as life starts wearing down on him. On top of trying to make ends meet running a convenience store he has to care for the niece that his missing sister left in his care. Memories of youth make it easier, until those memories come back to haunt him
Picking up directly after the events of 20th Century Boys, it seems like the world is finally out of danger, but the mystery of "Friend" still exists. As the world is threatened again, Kenji must search his memories for any clue about "Friend".

has finished publishing and it has 16 Chapters. It is also Known as: 21世紀少年, 21stCB, 21 Seiki Shounen

1. Gantz

Tokyo teens Kei and Masaru are killed by a subway train but awaken in a room with an ominous black orb that gives them weapons, suits and orders. Fighting bizarre alien monstrosities in a deadly game, will they win their freedom or die for the final time?

Gantz has finished publishing and it has 383 Chapters. It is also Known as: GANTZ, GANTZ: T, GANTZ:T, GANTZ杀戮都市, Ганц, กันสึ, ガンツ, 杀戮都市