Making My Best Friend Mine [Alpha Female, Omega Male]

(I might update the bonus chapters when I have time.) After transmigrating into a book, Jiang Guyu becomes the doomed supporting female character, the cherished first love, in a campus ABO novel. A few years before the story begins, she happens to meet the young villain, before he turns dark. After becoming friends with him by chance, Jiang Guyu treats him like her bestie and spoils him rotten. Until one day, the villain corners her. "I remember everything you've done for me. I won't let you down." Jiang Guyu: (smiles) "Of course! We're best friends!" Villain: "..." Later, The villain deliberately skips his pheromone suppressant injection and comes to Jiang Guyu's room... to study. His eyes are red at the corners, water drips from his half-dried hair and dampens his shirt, and intoxicating pheromones fill the room. "Help me..." He leans close to Jiang Guyu, his voice husky and sexy. "Mark me." "After all... we're friends, right?" Villain: Now he knows the right approach. Please follow the author's page and check out the upcoming story! --Blurb for "I Became the Campus Heartthrob Through Hilarity"-- Jiang Jiang transmigrates into a melodramatic campus romance as the villainous supporting female character who has a crush on the F3 and bullies the heroine. But... the moment she sees the heroine, Jiang Jiang, a total beauty enthusiast, falls head over heels. She's so cute! I have to be her friend! System: Your mission is to defeat the heroine and become the F3's most unattainable first love! Jiang Jiang, who's wearing a ten-layer filter for the heroine and is completely tone-deaf: Got it. Defeat the F3 and become the heroine's first love, right? In the original story, the heroine disguises herself as a boy to enter an elite academy. The F3 pursue her because of a bet, toy with her feelings, and force her into relationships against her will. As soon as Jiang Jiang enrolls, she snatches the top student's crown from the aloof academic prodigy and steals his scenes to tutor the heroine; She beats up the domineering school bully and protects the heroine from a gang of thugs; She teaches the heroine's twisted younger stepbrother, who likes locking people up, a lesson, then sends him to the police station to get straightened out. The System thinks its mission is doomed and starts crying. But then... Academic prodigy: You're amazing. Teach me how to study. School bully: You're amazing. Teach me how to fight... martial arts! Younger stepbrother: Sis-in-law, teach me how to date! How did you get my brother to fall for you? Jiang Jiang: Huh? The first two make sense, but what's with the last one? I don't know your brother. Everyone: ? Wait, you put so much effort into pursuing him, and now you're saying you don't know him? Who'd believe that?! Jiang Jiang: Your sister never told me she had any other brothers? Younger stepbrother: I don't have a sister. That's my brother! Jiang Jiang: ...Huh? The real male lead smiles faintly. "So... you pursued me until I was yours, then said we're just friends?" Jiang Jiang stammers in a panic, trying to explain. "No! To me, you're not just an ordinary friend. You're the most, most important..." "Bestie." Him: "..." Jiang Jiang: Help! What do I do after accidentally provoking the big bad? Academic prodigy/School bully/Younger stepbrother: I told you! You should pick me instead of him! (A sunny, straightforward girl who thinks of everyone as a friend x a cold, calculating, impossibly handsome guy) Theme: Sincerity is the only way to win someone else's heart