I Was Summoned and Turned Into a Sword

“Answer my call and appear before me...” “I will...” A dazzling flash of light passed, and when Su Mu opened his eyes again, he found a strangely dressed girl standing in front of him. “Will you sign a contract with me?” A black longsword carved three words into the ground: “I refuse!” “But... but you’re the one I summoned.” The longsword floated in the air, paused for a moment, then turned around and drifted away...