Dress na Boku ga Tangotonaki Katagata no Kateikyoushi-sama na Kudan

A boy named Sherlock Doyle is taken against his will and made to wear his sister's dress by an imperial diplomat, sending him to the country of Ehren. His sister, Glinda, a gifted individual, was scheduled to travel to Ehren as a royal tutor for the king's children but disappeared two days before her departure. Struggling to cope with this unexpected situation, Sherlock has no choice but to comply. Eventually, he uncovers unsettling information regarding the kingdom's plans for his sister.