Eric's life was stricken with hardship, and after years of enduring the losses of those most precious to him, he finally dies on the battlefield. However, the end of his life was really a second beginning. He finds himself reborn at the very start of his life, with all his memories intact. Now, as the only one who knows the dark fate that awaits everyone he cares about, he must do what he can to become the strongest and save them all.

The story begins when the gods call a conference to decide the whether to let humanity live or die, and settle on destroying humanity. But a lone valkyrie puts forward a suggestion to let the gods and humanity fight one last battle, as a last hope for humanity's continued survival. 13 gods will fight against 13 human champions in one-on-one battles to decide whether humanity lives or dies.

Since the Edo periods of Japan, gladiator arenas exist in certain areas. In these arenas, wealthy business owners and merchants hire gladiators to fight in unarmed combat where winner takes all. Tokita Ohma, nicknamed "Ashura", joins these arenas and devastates his opponents. His spectacular ability to crush his enemies catches the attention of the big business owners, including the Nogi Group chairman, Nogi Hideki.

Kazan inherited his Keshin, Enma, from his grandfather Iwan and is determined to rid the world of all evil Keshin users. The evil group Aguru, was just that. They're collecting Keshin in order to take over the world, and Kazan is determined to stop it! Watch him collect friends along his way to defeat Aguru!

Under the guidance of Mutsu Goro, a caretaker, Toritsuki Hiyori has just taken the next step in her career: raising yokai at the local yokai park...? Shenanigans ensue in this slice-of-death manga!

Renee, a girl with the curse of immortality, struggles to find a job as she keeps getting fired because of her curse. That is until one day, she is scouted to become a servant for a certain prince. As it turns out, the prince lives in confinement due to his curse of poison, which kills everyone he touches! Their curses are polar opposites, but as fate brings them together, their bond grows only stronger...

At an academy for the young sons of nobles, women are forbidden. There, an exceptional butler by the name of Junon works tirelessly to help the selfish girl-hating prince find a bride. For Junon has a reason he absolutely needs the prince to find a bride. A story of romance, gushing love, a secret, and a kingdom!!

Osamu Hirota is an ordinary high school student. That is, until Soichi, a student from the next town over, takes him to a mysterious mansion with promises of meeting a seductress. Out walks a voluptuous woman named Miwako, who, as she undresses, reaches inside of Soichi and rips out his heart! The next day, Hirota awakens. Was it all a dream? Or have we just started to pull back the curtains on this dark and suspenseful story?

Nobuko Tanaka works part-time at a grocery store and has tried to live her life in the background without being noticed. Her outlook changes, however, when she realizes she has a crush on her coworker Hiroki Irie. Can this wallflower escape her habits and demonstrate her true feelings to her crush?

With the username "nanashi," Fumiya Tomozaki is the number one player in Japan in the online game "Attack Family," also known as "Tackfam." Despite having such a prestigious title, he struggles in high school due to a lack of social skills. He blames the perplexing mechanics and unjust rules of life for his lack of friends, forcing him to give up and consider himself the lowest-tier character in the "game." Fumiya was surprised to learn the identity of the number two Tackfam player after a fateful encounter—a popular, clever, and outgoing female classmate of his, Aoi Hinami. Aoi was taken aback to learn that the inept Fumiya was behind the username "nanashi," and she became determined to assist him in winning the "greatest game of all." With Aoi's help, Fumiya begins to progress in the wonderful "game of life" by overcoming the harsh challenges of social interaction and human relationships.