A young boy that Asuka meets while helping Ryouta teach a preschool class. At first, he resents Asuka, believing that a man is not fit to be a preschool teacher. But after getting to know him better, he considers Asuka his "mommy" and Ryouta his "daddy." His parents are divorced, and he has no mother, so he thinks of female teachers as his mothers. He is especially fond of Ryouta and thinks they are fine with just her and not Asuka.
Gen is a friend of Mini. They often do fun stuff together. He appears in the one-shot Dizzy.
He is the top model in Korea that Mi-oh has a crush on (She even changes high schools to go with him, but he transfers last minute). He wants to gain the Dark Hunter CF spot, so he tries to date one of the Dark Hunters president's daughters, Mi-oh's oldest sister. But at the same time he wants to date Beautiful Mi-oh. His greed and ambition disgust Mi-oh which causes her to break up. He does what he can to sabotage her relationship with Kim Do-jin.
Allison's childhood friend, and the second protagonist of the series' first part. A scholar who has the ability to memorize things instantly and also is skilled at firearms. Wil does not share Allison's sense for adventure, but is usually dragged along by her. Major Travas is actually Wil, but they keep this a secret from Lillia.