Arthur, who'd become the champion of the most popular gladiatorial tournament in the universe, had abandoned his hope of freeing himself from his slave status, but one day, he meets a new gladiator named Sam.

Captain Gorou Edajima, a seasoned captain who has visited the various countries of the Special Region on a research mission, and master cook Petty Officer, 1st Class Hajime Tokushima were given a special mission: rescue an American journalist kidnapped in the Special Region! Aboard an Oyashio-class attack submarine, they set out onto the seas of the Special Region, but little did they know their mission would lead them headfirst into a whirlpool of petty rulers and pirates vying for control in the Blue Sea... (Source: AlphaPolis, translated)

An anthology of Shinobi no Kuni by various mangaka.

In the mid 1900s, the world began to fall to a brutal nation called Shorugoru, and in 1945, Japan surrendered and became an occupied country. Due to the occupying army, the Japanese people's lives have become a living hell, and they live in constant fear of death. One young red-eyed orphan girl, Sara, lives by doing odd jobs for a brothel that caters to the invaders. When she gets in trouble, she meets a strange creature called Kuro, who protects her from the soldiers. She continues to struggle to survive in this horrific new world. (Source: MangaHelpers)

Alternative version of Petit Eva.

What the world of course needs is a 4-Koma about a group of girls who play RPGs! (Source: Animeraider)

Akuzawa Akuto, an awkward boy, detests the the girl seating next to him, Koikawa Karen, for her constant annoyance to hang out with him.

Sonia Carnelian is the only daughter of the Witch of Salvation. However, during the wedding ceremony that was done in accordance with the treaty, the Prince breaks their engagement, and she is condemned as an evil witch. “In the original work, ‘the last boss’ will get angry, but I’m not that s\*upid.” ― Sonia escapes the crisis with the knowledge of “anime” gained by peering through the previous life. And she gets the Prince’s Knight in exchange for the insult.

The story revolves around the rumor of an old cafe in Kamakura. At the Bakeneko Club, customers can meet their lost cats. Maya and Gakuto are two workers at this cafe who encounter the pet owners led by this strange rumor. (Source: Anime News Network)

Shungo is a normal high school student living in a huge house. One day, his sister Ryoko sends Mayu and Mikihiro Tsukimura, two siblings, to live with him to help Mayu overcome her problem. Mayu's problem: androphobia (fear of men), and Ryoko wants Shungo to help her overcome it. How? By making Mayu and Shungo share the same room, bed, and even take baths together. To make things even worse, Reika Hojo, the student-council chair, somehow ends up becoming their maid.

DeroDero is the story of a juvenile delinquent, Hino Mimio, who happens to also be a psychic. His ability to communicate with the spiritual world as well as his demeanors caused him to constantly interact with supernatural beings -- usually ending up with Mimio beating the crap out of the monster or spirit.

Yuu Enji, a boy abandoned by his father, and the oldest kid in his foster home are fed up with adults like his selfish orphanage principal. His dream is to buy the orphanag​e, so that everyone there can live happily together. With that goal in mind, he decided to get a job, and went to his high school graduation. But from that day forward, the world suddenly changed! Adults have now morphed into giant chickens that attack children! Can Yuu protect the children during this crisis!? **Includes extras** 10.5 Egg and 20.5 Pure Human