Summer Wars

Kenji Koiso, a high school student with a talent for numbers, finds himself navigating a summer filled with unexpected challenges. Accompanying his crush, Natsuki, to her great-grandmother's 90th birthday, he becomes immersed in the lively Jinnouchi family dynamics. However, his summer takes a turn when he receives a mysterious email containing a complex code that he must solve, setting off a chain of events that intertwines his life with the global virtual reality world, OZ.