I'm Straight. I Just Want to Follow the Plot, Not Become Everyone's Crush

[Quick transmigration + two male leads + beloved by all + no fixed CP + all male leads are virgins + rivalry for the heroine + love triangle drama + straight-guy tendencies] Su Yan bound himself to a System. His goal was to play a background character, follow the plot, and walk away with a fortune. But the story went completely off the rails from the very first world. World 1: He only wanted to follow the plot and lie flat, but the young master of the capital became obsessively attached to him. “A-Yan, you're the one I love.” World 2: Following the script, he slapped the protagonist's love interest and was supposed to be written out. Instead, the one who got hit cradled his hand tenderly. “Does your hand hurt? Next time you want to hit me, I'll do it myself.” World 3: His aloof Immortal Venerable junior brother pretended to despise him as a good-for-nothing, but secretly slaughtered all his enemies for him. “Su Yan can only be mine. The rules of the immortal sect mean nothing compared to him.” Su Yan broke down. “I just want to follow the plot and get my fortune!” The System slammed itself against the wall in a panic. “Help! The big shots are all fighting over the Host!” The big shots closed in on him. “Su Yan, don't go anywhere. You can only belong to me.” Su Yan was close to tears. Wasn't he just supposed to follow the plot?