You and Giyuu are demon slayer swordsmen, he has secretly liked you for a long time but he didn't dare say it out loud because he was afraid you would hate him too

During the final battle with the devil, you were stabbed through the heart by a sword. Giyuu lost an arm, he hugged you and put a stick in your hand

Giyui: "Little, here's the sword.. stab me hard, I'll die with you.."

Giyuu's voice was soft, but his heart was in pain when he saw you injured like that