My Legendary Blade Slays Dragons in Another World

I transmigrated into the Dragon-Slaying Saber, a god-tier weapon with stats of +infinity. The sword's instincts made me want to have a master I could control. Ha! What a joke. A mere instinct could never make me submit! A master? Who'd dare tell me what to do? But humans broke into our weapon space and wrecked it. My brothers and sisters were scattered, and some were captured. I can't imagine what might happen to them. If I don't run, that legendary hero will force me into a contract. I'll end up with another master, and neither my body nor my mind will belong to me anymore. Then I'll be ordered to do all sorts of things! I was so scared that I hurriedly grew hands and feet and ran faster than a rabbit! A man found me when I was down on my luck and took me home. He may be taciturn, but he's wonderful: righteous, upright, kind, and principled. I could praise him in all sorts of ways without repeating myself. We fell into a sweet romance, and after we married, he was the ideal wife: graceful in public and a great cook at home. [Darkness spreads across the continent. Abyssal monsters surge up from underground and attack everywhere. Legend says that on the day the demonic tide arrives, the most evil world-ending dragon from the Abyss will lead the monsters in destroying this world. The only one who can save it is the master of the Dragon-Slaying Saber, the strongest man in the world: the hero.], Prophecy of the Savior The people of the temple found my wife, recited this prophecy to him, and said he was the legendary hero. Damn it! They want to send my wife off to die! Mini-scene: In the past, the Dragon-Slaying Saber believed nothing could make him lose control. He was the dominant one, and the hero was the submissive househusband! Until the hero gripped the hilt, and a forceful power surged along the blade. In that moment, the Dragon-Slaying Saber felt his blade-heart tremble with an intense, thrilling happiness that drove him wild. Dragon-Slaying Saber: ...Mmm~ (legs going weak, eyes closed, lying flat, ) Tsundere, prickly Dragon-Slaying Saber bottom × taciturn, domestic, upright, strongest man in the world hero top Theme: If life forces me into a corner, I'll fight back to the end, break out of my cocoon, and live beautifully as myself!