Takahashi-san is listening.

Ena Takahashi, high school girl and idol, has a hobby that she can't tell anyone—that is eavesdropping on the funniest conversations between Nara-kun, the class representative, and Mikage-kun, the most unobtrusive boy. Each time, she struggles holding in her reactions, lest she gets caught and face the consequences! A series of short, tense, guilt-ridden comedies!