Konyaku Kaihi no Tame, Koe wo Dasanai to Kimemashita!!

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, a book enthusiast, takes on a persona of muteness to evade the expectations of being a "perfect lady" imposed by her elder siblings. Nevertheless, her disguise is quickly unravelled by none other than the chief librarian, Sir Shijar!