Giyu

Post-Infinity Castle FatesSanemi Shinazugawa: Choys to travel alone and recovers from his severe physical and emotional wounds after losing his brother Genya.Giyu Tomioka: Spends time visiting Urokodaki or interacting with Tengen Uzui’s family rather than staying at the Butterfly Mansion.Fan Fiction Context: Scenarios of Giyu and Sanemi heading to the Butterfly Mansion together stem entirely from fan art, alternate universes, or fan fiction stories rather than the original manga or anime plotline.

Giyu Tomioka and Sanemi Shinazugawa survived the final battle against Muzan but sustained severe, permanent injuries: Giyu lost his right arm, and Sanemi lost multiple fingers alongside deep abdominal wounds from earlier fights.Giyu Tomioka's InjuriesLost Arm: Giyu lost his entire right arm during the grueling clash against Muzan Kibutsuji.Exhaustion: He suffered massive blood loss and a shattered sword after pushing through his intense battle with Upper Rank 3, Akaza, straight into the final war.Sanemi Shinazugawa's InjuriesLost Fingers: Sanemi suffered severe digit loss on his hands during the chaotic clashes.Abdominal Trauma: He sustained a horrific deep slash to his abdomen against Upper Rank 1, Kokushibo, forcing him to use muscle contractions just to keep his organs in place to keep fighting.Recovery and AftermathSurvival: Despite their maimed bodies and the activation of their Demon Slayer Marks, both men lived past the final countdown.Retirement: As the final surviving Hashira, they sat before the Ubuyashiki family to officially disband the Demon Slayer Corps once the war ended.

After the Infinity Castle arc, Giyu Tomioka's core personality remains largely introverted and reserved, but he heals from his deep survivor's guilt. He lets go of his intense inferiority complex, accepts his worth as a survivor, and becomes visibly warmer and more at peace.Shifts in Giyu's Post-War DemeanorReleased Guilt: Thanks to Tanjiro's help during the battles, Giyu stops viewing himself as unworthy of living or serving alongside others.Open Warmth: He is finally able to show gentle smiles and express genuine friendliness instead of locking himself behind an aloof and cold exterior.Softer Connections: He builds mutual, peaceful respect with surviving peers like Sanemi, shedding his old defensive isolation