Naoya Hashimoto is a secondary character from the anime King’s Game The Animation, appearing primarily in flashbacks that depict the first deadly game experienced by the protagonist Nobuaki Kanazawa. He is a male teenager with short brown hair and brown eyes, and he wears the standard Tamaoka school uniform distinguished by an orange vest over his shirt. In the story, Naoya is established as one of Nobuaki’s closest friends from his previous school, alongside their mutual friend Tasaki Daisuke. He is also a classmate who participates in the original King’s Game that claimed the lives of nearly everyone in that class.

Naoya’s personality is defined by a strong sense of morality, courage, and self‑sacrifice. He is naturally protective of his friends and classmates, often putting their well‑being ahead of his own. He possesses analytical thinking and tries to understand the rules of the lethal game in order to find a way to survive collectively. His willingness to take risks and his refusal to abandon others make him a natural leader within the group, even as the orders become increasingly brutal and hopeless.

His primary motivation throughout the game is to protect those he cares about, especially Nobuaki and Daisuke, and to try to end the cycle of violence imposed by the mysterious King. However, the game forces him into impossible moral dilemmas. During the sixth order, he and a female student named Ueda Kana are subjected to a Friendship Vote; Naoya wins, which indirectly leads to Kana’s death. As a consequence, he is ordered to find someone to have sex with in order to avoid spontaneous combustion. He reluctantly complies by sleeping with Nobuaki’s girlfriend, Chiemi Honda, an act that deeply wounds his friendship with Nobuaki.

Naoya’s role in the narrative is that of a tragic figure whose death serves as a turning point for Nobuaki. In the twelfth order, the King dictates that one student must roll a die and name as many classmates as the number shown, causing both the roller and those named to die. Naoya steps forward to take this sacrifice himself. He rolls a six and, with a heavy heart, names six classmates, including himself. This selfless act kills him and the others he identified, but it spares the remaining students from a mass punishment. His death haunts Nobuaki and reinforces the protagonist’s determination to stop the game in the present timeline.

His key relationships are with Nobuaki Kanazawa, his best friend, and Tasaki Daisuke, another close friend. The strain caused by the forced encounter with Chiemi damages the trust between Naoya and Nobuaki, though Naoya’s ultimate sacrifice partially redeems their bond in memory. He also interacts with other classmates from the original game, such as Chiemi and Ueda Kana, but these relationships are defined by the harrowing context of the orders.

Naoya does not undergo significant personal development during the story because his appearances are limited to flashbacks that show his final days. However, his consistent bravery and final act of self‑sacrifice reveal a character who grows more resolute in the face of despair. He evolves from an ordinary high school student into someone willing to give his own life to protect others. He has no supernatural or combat abilities; his strength lies in his moral conviction and his capacity for empathy and leadership.

Overall, Naoya Hashimoto is a loyal and courageous young man whose tragic death underscores the brutality of the King’s Game and leaves a lasting impact on the central character, Nobuaki Kanazawa.