Rikka Isurugi has spent her life training in the way of the ninja with her grandfather Hyoe while following in the footsteps of her father, the esteemed researcher Allen. His work has culminated in a set of cutting- edge drones equipped with artificial intelligence and incredible technical capabilities; although Allen plans to develop these drones for civilian use, there are others who have more sinister ideas in mind.

On Rikka's 16th birthday, things are forever changed when a paramilitary group raids the Isurugi house in search of the drone technology, killing Allen and Hyoe while Rikka manages to escape with the drones. Months pass, and Rikka is now an ordinary girl working as a private detective while sharing an apartment with another girl, Melissa. But when night falls, she dons her grandfather's fox mask and mercilessly hunts down those responsible for the attack. With the anger she felt that day driving her forward, Rikka will not rest until her family's killers receive the justice that they deserve.

[Written by MAL Rewrite]

Two men have just arrived at a location known as Quindecim and are unable to remember how they got there. They are immediately greeted by a young woman who escorts them to a small bar, where a bartender awaits them. They are told that they will have to participate in a game, randomly chosen by roulette, and will be unable to leave until its completion; if they refuse, the consequences will be dire. In addition to the rules of the game, the two men are told to play as if their lives are at stake. The game that has been chosen is billiards. But there's more to it than just pocketing pool balls, as the two are about to find out the outcome could mean life or death. [Written by MAL Rewrite]

A bus full of eccentric individuals is headed towards the urban legend known as Nanaki Village, a place where one can supposedly start over and live a perfect life. While many have different ideas of why the village cannot be found on any map, or why even the police cannot pinpoint its location, they each look forward to their new lives and just what awaits them once they reach their destination. After a few mishaps, they successfully arrive at Nanaki Village only to find it completely abandoned. Judging from the state of disrepair, it has been vacant for at least a year. However, secrets are soon revealed as some of the group begin to go missing while exploring the village and amidst the confusion, they find bloody claw marks in a forest. As mistrust and in-fighting break out, will they ever be able to figure out the truth behind this lost village? [Written by MAL Rewrite]

A girl named Olga is pursued by both the World Government and a man named Mad Treasure, as she is the only one who knows the location of the Pure Gold, a substance that can buy the entire world. Olga ends up sailing with the Straw Hat Pirates, and they journey to find the Pure Gold on the lost island of Alchemi, which is located inside the stomach of a large angler fish named Bonbori. (Source: IMDb)