I Turned the Most Hated Character Script into Everyone's Favorite

Reborn before the start of her freshman year, Lin Xiaoman finds a novel inside her head. It spells everything out clearly: she's the universally hated supporting female character, with an antisocial personality that puts everyone off. Lin Xiaoman breathes a sigh of relief. So it isn't that she's not good enough. The script was written that way from the start. Fine. She won't play along this time. She'll quietly keep to herself, stay out of sight, and avoid the male and female leads as well as everyone else. But the more she keeps her distance, the more those people gravitate toward her. Lin Xiaoman is baffled. Weren't I supposed to be universally hated? Why does everyone like me?!