Monster Strike (モンスターストライク, Monsutā Sutoraiku) or MonSt (モンスト, Monsuto) for short is a Japanese mobile physics game with elements of RPGs, strategy games and cooperative multiplayer. The game was co-created by Yoshiki Okamoto and developed by Mixi for the iOS and Android platforms. By June 30, 2015, the game had daily revenues of $4.2 million, and later became the highest-grossing mobile game of 2016, earning $1.3 billion for the year. A more traditional RPG of Monster Strike was released for the Nintendo 3DS in December 2015.
A web anime adaptation premiered on Youtube, where the first season aired from October 10, 2015 to December 3, 2016. The second season aired on April 1, 2017 with the season being split into two parts, with the second half entitled Monster Strike The Animation: The Fading Cosmos premiering on October 7, 2017. On May 3, 2017, the franchise and anime developed an OVA spin-off entitled A Rhapsody Called Lucy -The Very First Song-. This lead into the MSonic!, D'Artagnyan's Rise to Fame special mini-series that premiered on June 14, 2017. Both A Rhapsody Called Lucy and MSonic! are set in a separate continuity from the main Monster Strike anime. An anime film adaptation titled Monster Strike The Movie was released on December 10, 2016 serving as the anime's prologue.
Ren Homura has just moved back to his hometown of Kaminohara with only vague memories about the time he spent there in his childhood. After having his cell phone retrieved from the repair shop, 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 by summon a realistic monster from the game.
Ren finds himself in a pinch was the monster is capable of inflicting real damage, but manages to summon a monster of his own, the diminutive dragon Oragon, as well as awakening an alter ego from his missing memories,. With the help of his classmate Aoi Mizusawa, Ren defeats the man's monster, seemingly freeing him from the control of an evil entity. Thus Ren enters the MS world through the town's Stadium leagues, as he assists Aoi's desire to reunite her friends Akira Kagetsuki and Minami Wakaba into becoming a team of Monster Strike players, and finding his lost memories.
- Monster Strike Wiki (duplicate)