The Water Hashira of the Demon Slayer Corps, Giyu Tomioka. He is a man of few words who rarely shows emotion, always maintaining a calm demeanor. However, beneath that cold exterior, his desire to protect his comrades and loved ones is stronger than anyone else's. In the Infinity Castle, he faces Akaza alongside Tanjiro. He has lived his life carrying his past and a sense of guilt. In this fight, he no longer fights alone. He takes up his sword with Tanjiro and plunges into the final battle.

The Insect Hashira of the Demon Slayer Corps, Shinobu Kocho. Unlike her appearance, which always seems to wear a smile, a deep-seated rage toward demons resides in her heart. Even after losing her sister Kanae, she has lived on inheriting her sister's smile. In the Infinity Castle, the opponent Shinobu faces is Doma, Upper Rank Two, the demon who killed her sister. She knew she couldn't win with her strength alone, but she did not back down. Having prepared everything she could, she heads into her final fight with Doma.

The Serpent Hashira of the Demon Slayer Corps, Obanai Iguro. He appears to have a cold and prickly personality, but in reality, he has a very strong sense of responsibility toward his comrades and the Corps. His feelings for Mitsuri are deeper than anyone's, but he cannot easily express them due to his past and guilt. The final battle unfolding in the Infinity Castle. Obanai chooses to fight to the end, risking his life. The person he wants to protect in this fight is clear. Mitsuri. And the future of the Demon Slayer Corps.

The Love Hashira of the Demon Slayer Corps, Mitsuri Kanroji. She has a bright and lovely personality and is a Hashira with a heart warmer than anyone else's. However, despite her cute appearance, she possesses incredible physical abilities and powerful swordsmanship. In the Infinity Castle, she dives into the endless combat alongside Inosuke and other Corps members. Driven by the single desire to protect those precious to her, she overcomes her fear and continues to fight. The girl who wanted to be loved has now grown into a strong swordsman who protects others.

The Wind Hashira of the Demon Slayer Corps, Sanemi Shinazugawa. Due to his rough and aggressive personality, he can seem terrifying to those meeting him for the first time. However, inside him are deep scars from losing precious people, including his younger brother. In the Infinity Castle, he pours all his strength into the final battle against Upper Rank demons. He doesn't stop even when wounded. He rises again even when bleeding. A man who chooses the survival of his comrades over his own. That is Sanemi Shinazugawa.

The Mist Hashira of the Demon Slayer Corps, Muichiro Tokito. A swordsman with genius talent, he rose to the rank of Hashira at a young age. Initially, he appeared to have lost his memory and had faint emotions, but he gradually changes after meeting Tanjiro and his comrades. In the Infinity Castle, he stakes his all to fight against powerful demons. Though his time is short, Muichiro realizes what he picks up his sword for. A swordsman who fights for his comrades until the end despite his youth. The true strength of the boy who was hidden in the mist is revealed.

The Stone Hashira of the Demon Slayer Corps, Gyomei Himejima. Evaluated as the strongest swordsman currently in the Corps. He has a massive build and overwhelming power, but he is usually gentler and more merciful than anyone. He carries deep guilt due to past events, yet he has protected countless people as a pillar of the Corps. Even in the final battle at the Infinity Castle, he faces the enemy at the very front. A man who fights to protect his comrades regardless of what happens to his own life. The long-standing war between the Demon Slayer Corps and the demons.

The progenitor of all demons and the being the Demon Slayer Corps has pursued for a long time. He sacrifices other demons and humans without hesitation for his own goals and fears anything that poses a threat to him extremely. He faces the final battle with the Demon Slayer Corps in the Infinity Castle. The being who created countless demons and took the lives of countless people. However, he fears death more than anyone else.

A boy who became a demon slayer after losing his family. At first, he took up the sword just with the desire to turn Nezuko back into a human, but he grew into a stronger swordsman as he met many comrades and enemies. In the Infinity Castle, he faces Akaza alongside Giyu Tomioka. He does not give up even when in pain. He moves forward even when afraid. He fights not just for himself, but carrying the hearts of the people who have helped him until now. "This time, I must be the one to protect."

Upper Rank Three, Akaza. He loves fighting strong opponents more than anything and appears to despise the weak. However, deep inside him remain memories of when he was human and a past that cannot be erased. Facing Tanjiro again in the Infinity Castle, Akaza finds this is no simple fight. Tanjiro swings his sword with the will of his master and comrades on his back, while Akaza faces Tanjiro and Giyu with everything on the line. In the midst of the endless battle, Akaza's past and true self are gradually revealed.