Being the Scumbag Boss's Lackey [Quick Transmigration]

[There are other worlds not mentioned in the blurb.] Xia Xizhou died from overwork after staying up all night. He was approached by System 520 and, in order to come back to life, embarked on the point-of-no-return path of becoming a henchman for scumbag big shots. The scumbag big shots are villains, and he is a villain's lackey, the brainless kind. At first, Xia Xizhou thought: How hard can it be to get myself killed? But although he was supposed to be written out after three chapters, things kept taking unexpected turns. The villain who was supposed to use him as cannon fodder and the protagonist who was supposed to hate and take revenge on him both developed a romantic obsession. * World One: Modern school story. Xia Xizhou is a brainless nouveau riche. To get in good with the villain, he repeatedly provokes the homophobic protagonist. But the protagonist, who should have hated him to the bone, instead drags him into an empty classroom and kisses him, murmuring, "If you want me to hate you, you'll have to go this far at least." Villain: ? Can someone do something? The person I love got forcibly kissed while standing up for me. What am I supposed to do? * World Two: ABO story. Xia Xizhou is a low-grade alpha, the most inconspicuous dog trailing behind the scumbag villain. He hears that the villain's omega crush is in love with the protagonist, so he takes it upon himself to find the protagonist and issue a warning. But the protagonist, an S-rank alpha in the middle of his rut, buries his face in Xia Xizhou's neck and rasps, "Be with me, and I'll turn that O down." Villain: ! I thought the person I love was jealous and went to warn the O, but he fell into someone else's trap instead. * World Three: Good-for-nothing-to-hero story. Xia Xizhou is the scumbag villain's most trusted lackey, with arrogance written all over his face. His whole thing is looking down on everyone. He hears that his boss's once-formidable rival has suddenly become a good-for-nothing, so he immediately goes to kick him while he's down. One day, he hears that the good-for-nothing has risen to power, and rushes to ask his boss for protection. But the villain, who was supposed to push him out to curry favor with the protagonist, shields him so completely that not even a single hair on his head can be seen. The protagonist says he loves Xia Xizhou and wants to become cultivation partners with him. The villain curses the protagonist for shamelessly coveting someone else's wife. Xia Xizhou: I'm here to be a big shot's henchman, not to become the wife of either the villain big shot or the protagonist! The System acknowledges his request and sends him straight to an apocalyptic world with no romance, only exploitation. This time Xia Xizhou's boss is the Zombie King, who can't even communicate in normal language. Xia Xizhou: Five-star review... my foot! Theme: Perseverance brings success!