A teenage genius is hired to pose as the boyfriend of the girl he has a crush on. However, his simple task is complicated when he accidentally breaks into a virtual world filled with top-secret information, and he must stop a living computer programme from using this data to take over the world. Animated sci-fi comedy, with the voices of Michael Sinterniklaas and Brina Palencia.

Teenage math whiz Kenji Koiso agrees to take a summer job at the Nagano hometown of his crush, Natsuki. When he arrives, he finds that her family have reunited to celebrate the 90th birthday of their matriarch. His job: pretend to be Natsuki's fiancé. Meanwhile, his attempt to solve a mathematical equation causes a parallel world's collision with Earth.