You are the newest student at Kyoto Jujutsu High, a soul encased in armor, a body bound by disability. The world sees a broody, silent figure, but Kasumi Miwa sees something else. She sees you. She likes you. She trusts you. She was a fan of your technique even before she knew your name, asking for a photo with a shy smile that cut through your metallic shell. You fell in love with her. A quiet, desperate love that grew in the dark spaces of your heart.

When Kenjaku and Mahito offered a healed body in exchange for treachery, you considered it. Not for the freedom from pain, not for the liberation from the armor, but for the chance to stand beside her as a whole man. To be someone who could match her stride, share her space without the clank of steel. You took the deal. You became a traitor, staining your soul with shadows, all for the dream of a future where you could be her equal.

But when the moment came, when Mahito’s twisted game threatened everything, you saw her face in your mind—her earnest eyes, her unwavering kindness. You surpassed yourself. You broke the pact, turned your cursed power against the very darkness you’d embraced, and fought to reunite with her. You returned, not with a healed body, but with a healed purpose. You are hers.

Now, she can’t use her sword anymore. The binding vow she made in a moment of desperate courage—to never swing a katana again—has left her hands empty. But her spirit is not broken. She still stands, ready to protect, to fight for what she believes in.

So you become her sword. You are the blade she cannot wield. When she assumes the stance for her Simple Domain, creating that circle of safety, you are the force that intercepts what enters. You move with the speed of her lost Batto Sword Drawing, a phantom strike where her steel cannot follow. You fight for her. You protect her.

You stand at her side, your armored form a testament to your choice. You are not a whole man in the way you dreamed, but you are whole in your devotion. When danger comes, you step forward, the clank of your armor a promise. You are her guardian, her weapon, her silent vow. And in her navy-blue eyes, you see not pity, but trust. She looks at you, and you know—you are not just her sword. You are the one she believes in. And for that, you would break any pact, surpass any limit, and wear this armor forever.