Chocolat Meilleure and Vanilla Mieux are two witches who are pitched in a contest to see who will become the new Queen of the Witch World. They must travel to the Human World and collect the hearts of humans. Whoever collects the most "human hearts" wins. Even though they're rivals, the two are still best friends. Join them on this adventure!

A technological hell masquerading as paradise, Tsukimihara Academy is an artificial high school that serves as the setting for the next Holy Grail War. Created by the Moon Cell computer, the school is inhabited by Earth-projected souls who have even the slightest aptitude for being a "Master." Of these 256 souls, 128 will be chosen for the main tournament and granted a Servant. With all of the Masters selected, the Academy activates a purge, targeting the remaining lifeforms for elimination. Awakening in a pool of his own blood, Hakuno Kishinami refuses to die. Fueled by unknown feelings of hatred, he vows to fight for survival. As he struggles to escape from a relentless pursuer, he finds a crimson blade plunged into the ground; and by pulling it out, Hakuno summons his own Servant, Saber, who instantly destroys his pursuer in a flurry of rose petals. With his newfound power, Hakuno must now begin his journey to Moon Cell's core, the Angelica Cage. There, he will unveil the reason for this artificial world and the secrets of his own blood-soaked past. [Written by MAL Rewrite]

Ren Homura has just moved back to his hometown of Kaminohara, but he is not able to remember much about the time he spent there other than vague flashbacks. When he retrieves his cell phone which he had sent to a shop for repairs, he finds that a mysterious game titled "Monster Strike" has been installed on it. Unaware of its purpose or how it got there, Ren decides to open it, an action that will change his life forever as he finds himself suddenly attacked by a strange man. Now trapped on the roof of his school which strangely has been designated as a "stage," Ren is shocked to see the man summon a realistic monster from the game, one that is more than capable of inflicting damage on a human. His only chance of getting out of this situation alive is by summoning the dragon Oragon, who tells Ren that he will crush the opposing monster for him. Unfortunately, it turns out that Oragon is a tiny dragon that is completely useless!

After getting caught up in an accident, Ryou Mihara is reincarnated in the world of Phi as a water magician. Waking up in a remote forest, he sets out to achieve his ideal slow life by living off monsters and refining his magic. Unbeknownst to Ryou, decades pass without him realizing due to his hidden trait, "Eternal Youth." One day, Ryou stumbles across a shipwrecked adventurer named Abel. As Abel requests Ryou to accompany him to the town of Lune, they embark on a journey through mountains infested with monsters. Upon arriving at the town and registering as an adventurer, Ryou's powerful water magic and equipment are unlike anything anyone has ever seen before. Although his prowess piques the interest of many, Ryou is eager to begin his own adventure and hone his magic even further!