Souma invites Motoharu to go to the summer festival with Hayate, Shun, and Takayuki. After meeting Takayuki again, Motoharu also got to meet all the others. Having a natural talent for communicating, he's become friendly with all of them, except for Hayate. Hayate is always nervous, leaving Motoharu a little sad that they are not making progress. Therefore, Motoharu takes this opportunity to put a new idea to the test...
and then it would not longer be a 
100% pure Igarashi Motoharu world!
وحينئذ لن يكون عالم إيغاراشي موتوهارو
!النقيّ بنسبة مئة بالمئة
wird es keine 100%ige
Motoharu-Igarashi-Welt mehr geben!
¡el mundo de Motoharu Igarashi
ya no sería 100 % puro!
¡el mundo de Motoharu Igarashi
ya no sería 100 % puro!
ce qui reviendrait à contaminer
le monde de Motoharu Igarashi !
allora il suo mondo non sarebbe più
di Motoharu Igarashi al 100%!
então o mundo 100% puro de
Igarashi Motoharu deixaria de existir!
Тогда «миры Мотохару Игараси»
уже не будут вашими на сто процентов!