some of these details might be fuzzy or wrong, but it is one of those historical shoujo isekai manhwas. there is a school/academy where there are fan clubs for two of the male leads, the ogfl was obsessed with one of them and lead a fan club, and the male lead disliked her, but after the isekai, she became normal. and circumstances led her to join the student council and have to interact with the male lead(s).
some of these details might be fuzzy or wrong, but it is one of those historical shoujo isekai manhwas. there is a school/academy where there are fan clubs for two of the male leads, the ogfl was obsessed with one of them and lead a fan club, and the male lead disliked her, but after the isekai, she became normal. and circumstances led her to join the student council and have to interact with the male lead(s).