Demon Lord as a Substitute

[The devil who pretends to be a pig and eats the tiger (Cheng Zhiyi) x the fake overbearing but really childish CEO (Lan Xu)] In his previous life, Cheng Zhiyi did all kinds of bad things and ended up dying tragically. Fortunately, he has already prepared a way out for himself: Modern "Cheng Zhiyi" has just grown up, holds an admission notice from a prestigious university, has outstanding appearance, cheerful personality, a wealthy family, enlightened parents, and the brother of a movie star... Cheng Zhiyi: Haha, my wonderful life—— Cheng Zhiyi: Wait a minute, am I a "substitute"? Why didn't anyone tell him that Cheng Zhiyi, who had just grown up, had found a backer? The patron, Lan Xu, is responsible for providing money and effort, and Cheng Zhiyi is responsible for playing the role of Bai Yueguang, whom Lan Xu loves deeply. In order to grasp his identity, Cheng Zhiyi had to date Lan Xu. Fortunately, Lan Xu was a nice person and Cheng Zhiyi had a great time. It was Lan Xu who said some incomprehensible words from time to time, which provoked Cheng Zhiyi to reveal his true nature. Lan Xu: "Ask me and I will give it to you." Cheng Zhiyi: "How dare you speak to me like this!" Lan Xu: "?" Cheng Zhiyi: "... Mr. Lan, do you think I look like him like this?" Lan Xu: "It's not similar at all! QAQ!" Cheng Zhiyi tried his best to smile: "Baby, don't cry - what about this?" Lan Xu wiped the corners of his eyes and said reservedly: "Better." After being exposed too much, Cheng Zhiyi came to his senses: Lan Xu is not a fool. So, when Lan Xu said "you are not him" again, Cheng Zhiyi asked directly: "You mean, I am not Cheng Zhiyi, right?" He grabbed Lan Xu's throat: "Then who do you think I am?" Lan Xu kissed the corner of his lips: "Master... Dear friend, long time no see." Cheng Zhiyi laughed: "Isn't it time for you to kill me?" Intention: I haven't thought about it yet