Description
Go Mutoh is a 7-year-old boy of mixed Japanese and Filipino heritage, possessing medium-length brown hair, thick eyebrows, and olive skin. He is the son of Koichiro Mutoh and Mari Mutoh, and the younger brother of Ayumu Mutoh. His mother originates from Cebu, Philippines, contributing to the family's multicultural perspective, which later influences how they are perceived during the disaster.

He displays a strong interest in online video games, frequently seen playing on a handheld console. His gaming skills provide him with quick reflexes, crucial during survival situations like avoiding more severe injuries in the initial earthquake. He aspires to participate in the Olympics through e-sports and expresses a desire to relocate to an "IT advanced country" like Estonia.

During the catastrophic earthquake sequence, debris strikes him, causing injuries that result in bleeding from his eyes. Nanami Miura rescues him and bandages the wounds at a hillside shrine. His father later examines the injuries, noting cuts only to his eyelids and partially attributing his minimal injuries to his gaming reflexes. Koichiro uses a stapler to close the wounds, leading Ayumu to remark that the result resembles piercings.

His development involves navigating extreme survival scenarios alongside his family. He faces life-threatening challenges, including being adrift on a dinghy in the ocean with Ayumu, where discussions about dire measures like cannibalism arise. During this ordeal, he displays resilience and dark humor, remarking about being cooked "medium" if consumed.

Thematically, he represents a generational perspective contrasting with older characters. He initially critiques Japanese traditions, expresses a preference for Western culture, and voices a viewpoint that Japan should "die and be reborn anew." However, exposure to the disaster and interactions with others gradually foster a deeper connection to his cultural identity. His mixed heritage becomes a plot point when the family encounters discrimination, such as being denied passage on a rescue boat due to not being "full-blooded Japanese," highlighting societal tensions during the crisis.

His relationships include a sibling dynamic with Ayumu, where they rely on each other for emotional and physical survival. His parents' efforts to protect him underscore familial bonds amid chaos, though the narrative places him in scenarios testing these ties repeatedly.