Yuu and the others help Ahegao Double Peace-sensei at a doujinshi exhibition. There they encounter the Kanzaki sisters who run a major circle. After getting caught up in the sore relationship between them and Ahegao Double Peace-sensei, Yuu gets roped into a doujinshi competition!
Oh, the author of that crappy 
little sister light novel?
Ach ja, der Autor dieser
ekelhaften Schwestern-Light-Novel.
¿El malísimo autor de la novela
ligera de la hermanita?
¿El autor malísimo de la novela
ligera de la hermanita?
Le naze qui écrit
l’histoire sur la sœur ?
Oh, sarebbe l'autore
di quel romanzo schifoso sulla sorellina?
Oh, o autor dessa porcaria
de historinha de irmã?
А, автора той убогой 
писанины про сестрёнку?