Ai ga Nakereba Idol Dekinai

Noa Kuroda worships Ibuki, a member of the super popular idol group ILY, as a god. After ILY's concert, Noa happens to run into Ibuki at a convenience store. When Noa learns that Ibuki is stressed out from being worshiped as a "god" and as a charismatic figure by his fans, she unconsciously hides the fact that she is an otaku, but...?!

(Source: Kodansha, translated)