I Decided to Be a Mute So That I Can Escape My Engagement!!Konyaku Kaihi no Tame, Koe wo Dasanai to Kimemashita!!; 婚約回避のため、声を出さないと決めました!!; Konyaku Kaihi no Tame, Koe o Dasanai to Kimemashita!!; I Decided to Be a Mute so That I Can Escape My Engagement!!

Altina who's fond of books starts pretending to be a mute in order to escape the imposed image of her as a "perfect lady" role that's set-up by her older brother and older sisters. However, that being said, that pretend act will soon be discovered by no other than the head librarian, sir Shijar himself?!