The seventh volume of the Mamahaha no Tsurego ga Motokano datta light novel. It is written by Kyousuke Kamishiro with illustrations by TakayaKi.
From one of the school festivals, the memory of being a former couple is becoming a good memory ... Around this time, a new daily life as a student organization secretary of Yui has begun! Gathering in the student organization room with a tense look-high school students who are not good at romance !?