Everything is due to this tear mole, no, it should be a double tear mole. Mei, he also has a mole under his left eye. Seven-year-old Kazuki had been alone when Mei moved in. He had no friends, and even his parents were away from home all year round. He only had Butler Wang. Kazuki and Mei, who have tear moles, are considered to be a pair of brothers. Mei's parents saw that the lovely Kazuki was alone, and even asked their children to get along well with Kazuki and be good friends. From then on, Mei, who was two years older than Kazuki, took on the task of taking care of Kazuki. He always quarreled with the children who teased Kazuki for being a sissy, and fought with those who teased Kazuki, often leaving injuries all over his body. Girls all secretly liked Kazuki, but Kazuki ignored no one and just followed Mei silently.