Minoru Sakura

He is a kindergarten-aged boy who lives at Tachibana Manor, which is managed by Sakuzo Tachibana. He can be cheeky at times, but he has a fondness for Lalabel Tachibana. Since his mother is busy with work, he is entrusted with the house key and is known as the "key boy." He is responsible for checking on visitors to the house, demonstrating a mature and dependable side.