Ruri Yukimura

Age: 7 years old. Shouichirou's younger sister. A first-grade elementary school student. A girl who dreams of being a princess. She loves playing princess games. Her dream is to become a princess and find her destined prince. Since her brother Shouichirou doesn't seem like a prince to her, she calls him "the neighborhood big brother." She falls in love at first sight with Takumi and starts calling him "Lord Takumi." However, she eventually realizes that she is not the princess for Takumi and steps back.