Summer Wars 4K

Name: Summer Wars 4K
Genre: Action, Animation, Comedy
Released: 2026-01-15
Duration: T1H49M
Cast: Ryûnosuke Kamiki, Nanami Sakuraba, Mitsuki Tanimura, Takahiro Yokokawa, Mieko Nobusawa

109 min | 15 Jan 2026

Parental guidance recommended for younger viewers

A student tries to fix a problem he accidentally caused in OZ, a digital world, while pretending to be the fiancé of his friend at her grandmother's 90th birthday.

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

Director: Mamoru Hosoda
Cast: Ryûnosuke Kamiki, Nanami Sakuraba, Mitsuki Tanimura, Takahiro Yokokawa, Mieko Nobusawa
Genre: Action, Animation, Comedy
Rating: PG (Parental guidance recommended for younger viewers)
Release Date: 15 January 2026
Runtime: 109 min