Dude, I'm a Guy

The System chose the wrong target to win over, but he's stubborn and insists I go along with it. “Dude, you want me, a man, to seduce the male lead?” The System was calm as the grave: [It's just work. Who hasn't messed up?] [Just follow the procedure. He won't actually sleep with you.] That night, I wore a sheer shirt, put on a chest chain, and climbed into the male lead's bed. The moment he saw me, his furious expression turned delighted, and he lunged at me like a dog spotting a bone. ...System, you bastard!

Theme: You bastard.