Siegfried, a legendary smith, created powerful 13 Relics. These are given to 13 clans and was used to stop the great war in his time. Unfortunately, there are clans who wanted to possess more. To prevent these, Zeke Olsen (Shun's father also a Relic holder) travels the world to make sure these are on the right hands. Years has passed Zeke never came back. In search of his father, Shun will travel the world with his companions. Will he able to find his father? What will happen to the Relics?
On his seventeenth birthday, Amamiya Kota was going to ask his classmate Misora Hiyori out. Tragically, he dies in a car accident but is given a second chance back in the living world on borrowed time. He gets entered into a competition called the 13 Game where other people like Kota who were supposed to die return back to the world and given an option: locate and kill 13 other players or suffer the fate of death. Each player is assigned to a handler, mysterious beings with special powers, who use them as if they were characters in a video game. Kota's handler, Merume, explains that there are players like him all over the country, each with a unique ability that helps them kill, and Kota has to kill 13 players within 1 year. With his demon hands ability that was inspired from his hobby of magic tricks, Kota must unwillingly participate in this cruel game if he wants to live. (Source: MangaHelpers)
If you could find out a little something about the future, what would you do? Get rich off of the stock market? Use the media to become famous as a prophet? Or… (Source: M-U)
After her mother passed away, a young girl named Pepe disguises herself as a boy in order to work. Keeping her mother's pendant with her, she travels to a secluded mansion to work as a servant. While working she stumbles across a secret passage leading her to a prison. Behind the prison bars is a man in a pig mask who calls himself Jack. (Source: MU)
For four decades, Golgo 13 has been the world's greatest assassin for hire - sometimes to settle a private score, and sometimes to change history! His real name and nationality are unknown - but his legend is everywhere. G13 never fails a job, and never sees his clients again... ...unless they try and betray him!
Lucky Number 13
Romance began for these these two when Satou Hiroshi fell into Tsumabuki's arms. Literally. From the fifth floor. However, when accidents and mishaps seem to start following Tsumabuki, can their love last, especially since it's rumored that noone who have dated Hiroshi have lasted for more than week? (Source: Bliss)
In elementary school, Juuzou was tortured by his classmates. Years later, he finds himself working with one of his former bullies, a man named Akai, who has moved into the apartment above his. As time progresses, Juuzou's revengeful alter-ego takes over and he becomes a psychopathic killer. (Source: MU)
Lega no 13
The time is the Italian Renaissance. The setting is Venice. 21-year-old Legare Salviatti lives with his father Georg, a seemingly simple medicine man who years ago separated from his wife and moved from Florence. Legare spends his days idly dabbling in painting, music, and flirting with women when not pursuing his one true passion, alchemy. However, his peaceful life is suddenly turned upside down when his father is arrested on suspicion of practicing black magic. Desperate to save his father's life, Legare turns to a priest for help, but nothing is as it seems in the twisted world of politics...
13 Nichi wa Kinyoubi?
Ema is obsessed with ghosts, and is even part of her school's occult club. She'll do anything that has to do with some crazy superstition about ghosts or spirits, and make sure that she goes out of her way to do it. Ema is known for this at school, and the series follows her pursues to find ghosts. Ema, unfortunately, cannot see the things that she loves, unlike a few of her friends... (Source: StarryHeaven) Included one-shots: Volume 1: Shuugaku Ryoko no Susume Volume 3: Time Capsule and Happy End no Tsukurikata
13-banme no Alice
14-year-old Alice is a descendant of the Kujouin clan, known for its attitude of superiority, and lives by her own self-determined rules of behavior as she aims to be the perfect lady. One day not long before her 15th birthday, a mysterious girl appears, who calls Alice the Thirteenth, and herself the Third, and that she have come to awaken the power that sleeps inside Alice. Alice's peaceful school life is interrupted by harsh trials. What is the secret inside her? She's proud, mean and selfish, but also somewhat kind. The story of this young lady Alice and her "high gothic action" starts here. (Source: Kadokawa)
13 Gatsu no Higeki
After Marie loses her mother, her father sends her to a religious boarding school. First she just thinks this school is strict, but then she finds out that there are weird things happening...
ACCA: 13-ku Kansatsu-ka
The kingdom of Dowa, which is subdivided into 13 states, is celebrating its monarch's 99th birthday. These 13 states have many agencies that are controlled by the giant organization known as ACCA. Within ACCA, Jean Otus is the second-in-command of the inspection agency. His agency has ten people placed in each of the 13 states, with a central office in the capital city. They keep track of all the activities of ACCA across the kingdom, and keep data on each state's ACCA office flowing toward the central office. Jean also often has business trips from the capital to the other districts to check on the situation and personnel there. (Source: MangaHelpers)
Mr. Secret Floor - Shousetsuka no Tawamure na Hibiki
An adaptation from the novel series "Mr. Secret Floor" by Asagiri Yuu, and illustrated by Tsurugi Kai.
13-nin no Short Suspense & Horror
Short horror stories writen by thirteen different mangaka.
Rack: 13-gakari no Zankoku Kikai
High school student Shou Shintou, son of the Superintendent General of the Metropolitan Police, is known for his extraordinary deductive skills and the ability to solve even the most difficult cases. In reality, though, his brilliant judgements are based on solid proofs and confessions—brought to him by the Special Investigations Division 13, specializing in questioning with the use of tortures.