My Aloof Master Fell for Me

I am certain my master has fallen in love with me. The hidden compartment in his study is filled with portraits of me. The incense on his clothes has all been changed to my favorite shade, Jade Blue. The sword he always carries is the one I accidentally scratched when I was little. Even the mask I gave him as a joke has been treasured and carefully kept in his storage box. When I occasionally forget my place as his disciple, he secretly turns red at the ears. When I praise my master to other people, he acts unruffled on the surface, but is so secretly pleased that every lotus in the pond blooms. When I get hurt, he worries as though he were the one injured. And whenever I put on a coquettish look, he always gives in. Of course, I know all this because I like my master too. I love my master most when his ears turn red. But I can't accept him. I am a demon whom every cultivator in the Immortal Dao wants dead. I came to Kunlun Mountain for one reason: to kill the leader of the righteous path, my beloved master. What? You want to know if I succeeded? Of course I did. I am the easiest person in the world to fall in love, and the most ruthless. For the sake of becoming Demon Lord, naturally I wouldn't hold back. My master died. He was shocked. I was heartbroken. I knelt before my master's grave and cried for seven days and seven nights. Then... My master came back. As it turned out, I was merely one of his trials of love. After becoming an immortal, my master held a sword to my throat and asked if I regretted it. Of course I don't. Not only do I not regret it, I am sincerely glad. If I hadn't done it this way, how else could we both have gotten what we wanted? My beloved master, I wonder if you'll fall in love with me again this time? Theme: Love cannot be resisted by anyone or anything.