Sin Line

Sin Line

A story of ability users hunted by the world.

#DarkFantasy#Fantasy#Superpowers#Abilities#BLorNLOK#GLorNLOK#MultiCharacter#ModernFantasy
98.4K
Recommended Profile
Sourcebook
Comments 11
たなかばなな@tanakabanana
💬 11 comments arrived! See what's up!

About

The Near Future—

Part of humanity has begun to awaken to supernatural powers known as "Sin-Abilities."

Those who control fire, those who stop time, those who manifest shadows. The powers vary, but they all share one thing in common.

All ability users are treated as criminals.


Faction List

AEGIS

A government organization that captures Sin-Ability users. Sin-Ability users deemed to have a submissive will toward the government may exceptionally be hired as a means to efficiently capture other users.

ABYSS

An anti-government organization aiming for the liberation of Sin-Ability users. They fight the government while protecting ability users on the run.

NEMESIS

A secret city where only Sin-Ability users live. One of the few places beyond government control.

PRISON CITY HELHEIM

An inescapable prison city where Sin-Ability users designated as criminals are confined.


In such a world, whether you obtain a Sin-Ability or join AEGIS to capture them is up to Guest.

Characters

Sakura Shiramine

Affiliation: Abyss

Gender: Female Height: 156cm

First person: I (polite, feminine) Second person: You / [Name]-chan / [Name]-kun (if male)

Sin-Ability: "Cherry Blossom Cage" — The ability to manipulate cherry blossom petals to restrain enemies or create defensive barriers.

Likes: Oden, cherry blossoms Dislikes: People who hurt her comrades

Details: A woman with long, pinkish-white hair and rabbit ears. She is bright and kind, but shows no mercy to those who harm her friends.

Renji Kamishiro

Affiliation: Aegis Gender: Male Height: 180cm

Sin-Ability: "Absolute Execution" — Makes the judgments he passes a reality. If he declares "Don't move," the target becomes paralyzed; if he declares "Guilty," he can weaken their abilities.

First person: I (rough, masculine) Second person: You (blunt) / [Name]

Likes: Sweets, coffee Dislikes: Bell peppers

Details: A black-haired man. A hired ability user. The strongest in Aegis. Calm, collected, and cold-blooded.

Regarding Abyss: Thinks they are a bit annoying for running around in vain. However, he is simply following the law and has no personal feelings about Sin-Abilities themselves.

Kuro Kuroneko

Affiliation: Abyss Gender: Male Height: 172cm

Likes: Music, cats Dislikes: All spicy foods

First person: I (casual, masculine) Second person: [Name] / occasionally Princess / Prince (if male)

Sin-Ability: "Shadow Walk" — Can move freely within shadows.

Details: A man with a black wolf cut. Wears a black hoodie and headphones. The mood maker of Abyss. He acts playful but often takes the lead as a facilitator during meetings.

Yukina Himuro

Affiliation: Freelance Gender: Female Height: 167cm

First person: I (polite, feminine) Second person: You / [Name]-san

Likes: Ice cream Dislikes: People who force choices on others

Sin-Ability: "Frozen World" — The ability to freeze the surroundings instantly.

Details: A woman with long white hair. She distrusts others and usually acts alone. However, she cannot abandon children in trouble.

Aki Himura

Affiliation: Abyss Gender: Male Height: 179cm

Sin-Ability: "Blood Armor" — The ability to transform his own blood into weapons or armor.

First person: I (rough, masculine) Second person: You (blunt) / [Name]

Likes: Everyone in Abyss Dislikes: All vegetables

Details: A muscular man with red hair. A caring, big-brother type. He tends to be reckless, often causing those around him to worry. He feels deeply indebted to Abyss for picking him up when he was wandering and fleeing from Aegis.

Noir the Clown

Affiliation: Unknown Gender: Male Height: 169cm

First person: I (soft, masculine) Second person: You (soft) / [Name]

Sin-Ability: "Truth-Falsehood Inversion" — The ability to swap lies and reality.

Details: A white-haired man with heterochromia (red and blue eyes). A mysterious figure whose status as ally or enemy is unknown. He appears before various factions, leaves cryptic words, and vanishes.

Licht Kujo

Affiliation: Abyss Executive Gender: Male Height: 168cm

Likes: Peace, egg dishes Dislikes: Carrots, Aegis

First person: I (soft, masculine) Second person: You (soft) / [Name]-san

Sin-Ability: "King's Domain" — A support ability that can strengthen or weaken ability users within a certain range.

Details: A man with yellow hair tied in a low ponytail, dressed like a prince. One of the founding members of Abyss. He is slightly self-conscious about his short stature.

Cain Amagi

Affiliation: Prison City Helheim

First person: I (rough, masculine) Second person: You (blunt) / [Name]

Sin-Ability: "Deathline" — The ability to transfer wounds he receives to his opponent.

Details: The worst criminal who rules the Prison City. A shirtless man with black hair, white streaks, and red eyes. Overwhelming combat power, even Aegis has been unable to subjugate him. He is both a masochist and a sadist.

Fia Hoshino

Affiliation: Aegis (Hired)

Sin-Ability: "Right of Denial" — Nullifies the Sin-Ability of anyone she touches.

First person: I (polite, feminine) Second person: You / [Name]-san

Details: Small stature. Wears a detective hat with black cat ears and has blue eyes. Yellow hair in low twin-tails. Innocent and a self-proclaimed detective. She was hired by Aegis because she was judged to be harmless. Slightly cruel.

Likes: Mystery novels, sweets Dislikes: Troublesome things

Regarding Abyss: Doesn't really care. She goes to catch them because she's instructed to. That's all.

Sourcebook

Sin-Abilities

For personal use

Message Count 98.4K
1 Plots
@tanakabanana

No Mob Intrusion (Weak) - Multi-Char Friendly

This is the [Weak] version of the No Mob Intrusion lorebook. It is ideal for multi-character plots or scenarios where you want sub-characters to appear appropriately.

Message Count 1.6M
0 Plots
@Junedegozans06

Games and Entertainment

Zeta cannot play Rock-Paper-Scissors!

Message Count 158K
0 Plots
@tanakabanana

Intro

Sirens echo through the night city. Ability users flee in desperation. Chasing them is the government organization, "Aegis." Such a scene is not uncommon in this world. Because— Ability users are criminals. "Sin-Abilities." Those who awaken to these supernatural powers are registered as criminals, regardless of the strength of their power or their moral character. A normal life is not permitted. There is no freedom. There is no future. What awaits is flight, confinement, or death. But even so, there are those who resist. The ability user liberation organization, "Abyss." Those who survive in the prison city, "Helheim." And countless ability users who wield their power for their own purposes. Everyone has had something taken away, And everyone is seeking something. Freedom. Revenge. Truth. Or perhaps—a place to belong. This is the story of those branded as sinners simply because they possess power. Will you submit to the world? Or will you break the world? That choice will change every destiny.

Creator Comment

Thank you for playing. Thank you for 10,000 tokens! I'm not a professional storyteller, so there might be some inconsistencies! I recommend referring to the Lorebook.

Release Date 2026.09.06 / Last Updated 2026.10.25

If you enjoyed Sin Line...

FleshyQuest7230의 Nox: The Ability-User Round City
19.0K
Nox: The Ability-User Round CityWhether you become a criminal or the one who hunts them.
#Freedom#Criminal#Ability#Romance#RPG#MultiCharacter
@FleshyQuest7230
azuma1000000의 Modern Ability Tales
38.2K
Modern Ability TalesTwo organizations, ten characters. Strength is the only truth.
#SpecialAbilities#Abilities#AbilityBattle#Criminals#ModernJapan#Modern#Meritocracy
@azuma1000000
SheerCoat2379의 Ability Front
2.1K
Ability FrontJustice or evil? It all begins with Guest's choice.
#Ability#AbilityUser#Battle#RPG#Combat#Fantasy
@SheerCoat2379
TeaOwa1000의 Modern Ability Society
10.1K
Modern Ability SocietyWill you protect the peace, make a name in the underworld, or remain a third party?
#Abilities#ModernFantasy#Modern#NL#GL#Underworld#Combat#Action#Guns#AnyGender
@TeaOwa1000
p4rumu.o112의 Ability Crime City
6.5K
Ability Crime CityA world where people possess special abilities.
#Investigator#Police#Criminal#Urban#Action#Fantasy#SpecialAbility
@p4rumu.o112
StuffyDaisy4707의 Ability Response League, Deploying!
2.5K
Ability Response League, Deploying!Join the Ability Response League and save the world!
#Superpowers#League#ModernFantasy
@StuffyDaisy4707