Blood Stains the Nine Heavens

In ancient times, Wayu fell deeply in love with Lansi. Unable to accept her death after losing her soul, he devoted himself to attaching his spirit to her. But when Lansi recovered, she was deceived by a villain's lies and turned on Wayu, trying to kill him... Why must there be feelings in this world? Why must there be love? When the heart is dead, the blood is cold, and so is the blade... Why did love have to turn bitter? Leaving hurts, staying hurts. Where can they go from here?