Kanshou Taishou kara Kokuhaku Saremashita.

Lorraine, the daughter of an ordinary aristocrat, has maintained one hobby from her past life: fangirling over handsome idols! Plus, it seems like everyone in this new world is drop-dead gorgeous! One day, Jeremiah, the handsomest one of them all, asks her to pretend to be his lover. Of course, Lorraine was going to refuse, but she is completely overwhelmed by his beauty and aura up close... Weak at the knees, Lorraine accepts his request! After all, she's just his fan, right? A dreamy romantic comedy about a girl who loves handsome idol men! (Source: Pocket Comics)