Four years ago, Kazuma Kannagi was defeated by his cousin Ayano Kannagi for the right to be the successor of Enraiha, a sword passed down in the Kannagi family. His defeat, along with his lack of talent for En...

Ichiro, an investigator at the Tokyo Metropolitan Police Department Public Security Bureau, under the order of his superior, approaches Shiro, a yakuza who is engaging in sexual companionships with politicians,...

Valume Lune Tiltu is a prince who's expected to take the throne, but a simple coronation will not land him the crown. Joined by the mirror spirit Alamine, he must travel across Japan, making contracts with the...

Touu, a half-human youkai with a fondness for sweets, manages a pawnshop in a secluded part of town. Wan Lon, the bad-tempered young man who has become Touu's manservant in return for his help preserving his...

The main character, Siwoo Lee, lost his parents to a murderer ten years ago. Finally, he meets Jack, the killer who killed his parents, and beheads him. “It wasn’t me who killed your parents.” After learning...

Minamino Sango, a 16 year-old cute, hyper, and somewhat reckless girl, gets rescued one day by a green-eyed boy with black wings who calls himself Kai and claims to be Sango's guardian angel... or is he a devil...

Fujita is a second year middle school student with a face as pretty as a girl's. On top of that he's whimpy and a bit of a crybaby so he's often confused for a girl. Echo-chan is a fairy who promises to grant...

Akira's lover Youji suffers from oxyosmia, a condition that makes him overly sensitive to smells. The only smell he really loves is Akira's, much to the latter's dismay. One day, Akira consults their mutual...

All of Keiji's bodypiercings are the symbol of a secret contract, which stipulates that all his needs would be completely taken care of by two twin brothers, Sou and You, in exchange for his becoming their pet....

Alto, an aspiring magician, is about to repeat a grade when he accidentally summons the demon Vermeil, which was sealed in a book Alto found by chance. Not only does Vermeil hold an ancient power capable of...

Kuro Daijuuji is a poor detective living in Arkham City. One day, he was requested by Ruri Hado of Hado Financial Group, to search for a magic book. While he initially refused, Ruri offered him a large sum of...

One day, Nadeshiko Aoi, a slightly geeky high school girl, meets a beautiful boy. He has a mysterious atmosphere, and he makes a proposal that Nadeshiko has never thought of before. Asking if she wants to know...

A story about a man with a disease where he dies if he doesn't kiss, and the secret kissing contract made in order to keep him alive; an office contract romance. (Hour of Lunacy) Original Webtoon:Daum...

Shinobu is a school girl that possesses the powers of an exorcist. She lived with her grandfather, who has died. leaving his church to her. It was her grandfather that helped her control her power in order to...

Tsukumo Sayo made a promise with a child demon when she was 5 years old. Now, 10 years later, that demon is tired of waiting her and suddenly he appears in front of Sayo to fullfil that promise? "I'll...

Consists of a collection of oneshots. Love After Contract I (Koi wa Keiyaku no Atode)Kazuto wakes up with a hangover and finds himself lying in bed with a stranger. The stranger, Takasugi, is a young CEO and he...

From MangaHelpers: There is a hidden island that is a mecca for martial artists. There are different reasons people go there--because they want to become amazing at their art, or simply because they come from...

Aberrations awaken, monsters run amok, the cycle of reincarnation broken. The world plunged into chaos! As humanity faces destruction, humans awaken the ability to form “aberration contracts”, becoming...

Beautiful and distorted sensual story of the devil and the girl. Yoshino, who wasn't drawn in the main story when she was 18 years old. The contract with the devil Belial "will pay one price and one wish will...

Yoshino, a girl who spends her days in solitude stumbles across a mysterious book in a secondhand book store. She accidentally summons Belial the demon and he tells her she may trade one thing for a wish...

Suddenly, Yuuko’s younger brother contacted her saying, "I bought a detached house with my boyfriend." However, the person in question hid somewhere on the day of the move. Yuuko, an office lady who decides to...

Shy freshman college student Rikiya knows he likes guys, but has never been in a relationship, only able to look on without expressing his feelings. Living on his own for the first time he decides to try and...

Deep in a cave lies a demon trapped in ice who will eat any human who dares enter. The demon, Blood, waits for the human who will cry the purest tears, for the gem formed from those tears will break the spell...