Responses
ok so i found the tittle but can't find it here so here it is
Kabe Sa Dōjin Sakka no Nekoyashiki-kun wa Shōnin Yokkyū o Kojiraseteiru, abbreviated as KabeKoji
but this is a similar trope if you want
https://www.mangago.zone/read-manga/my_fave_looks_so_precious/

Guys, hear me out! So i saw some vid on TT app about an idol and a writer being so obsessed with each other. The idol visited the writer's signing event and gave him a bouquet of flowers not knowing the writer is also a fan of that idol. And hiding each other's obsession from one another. I felt like I've read something like that in a manga. Please help me, i wanna read it again :)