Kokuou Heika, Anata wo Kyouiku Itashimasu

Lacherie, the daughter of a fallen noble family, lived a modest life as a governess. One day, her uncle Rudolf approached her with a request: "I want you to educate the current king, who is notorious as a tyrant, for the sake of the country." Lacherie, disguised as the king's fiancée, Sophia, entered the palace, only to be met with the tyrant Jill pointing his sword at her and ordering her to "get out," before disappearing during class time. "I was prepared to be ignored, but he won't even come to my lessons!" The story of a young governess's struggle to change the king begins! (Source: MUGENUP, translated)