Tensei Shitara, Kareshi Nannin Dekiru kana?

Synopsis

Haruna Hinata is an unpopular high school girl who has never had a boyfriend. While she secretly has feelings for her childhood friend Ikuya, she, being the late bloomer that she is, has not been able to confess. One day she gets into an accident and is reincarnated! In this new world, women can have multiple husbands and even in high school it's obligatory for girls to submit dating applications with several boys.