Mahou to Boku to Dekkai Shishou

A young boy named Hinata aspires to use magic and becomes an apprentice to Esmeralda, a 240cm tall witch. Their relationship starts with her teaching him the magical arts. Over time, Esmeralda's feelings toward Hinata shift, creating uncertainty about the nature of her affection. It remains unclear whether her emotions are purely those of a teacher for a student or if they hint at something deeper.