This movie is "Monster Strike The Movie: To The Place of Beginnings" and story line : Monster Strike: The Movie serves as a prequel to the net anime series based on the game of the same name. The anime tells the story of Ren, who returns to his hometown with no memories of having lived there. When a a cell phone repairman installs the Monster Strike app on his phone, Ren finds himself pulled into a real-world version of the game and begins piecing his memories together again..