The main chef and owner of Trattoria Samon, the restaurant where Tatsuya and his Samon's two children, Natsuki and Jin, work. He tends to be a fair boss to his employees who do not have a problem with him as their boss. Samon admires Takeshi Takano's work as a photographer and even was able to get his autograph in the first episode of the anime.
She is is Samon's wife, thus Natsuki's and Jin's mother. She appears only in the last episode.
Midori is an energetic girl in Tatsuya's class who has been one of his classmates since their first year in high school. She is the clarinet leader in the concert band at her school. She seems to be very desperate for Tatsuya's odd sign of affection or even perhaps noticing her once in a while.
Jiro is a headstrong kid that is set on revenge for all of the destruction Nene has caused. It has been assumed that Nene may have burnt down his village and taken his entire village (or kids) hostage, just like what happened with Shu's village. Jiro is constantly causing rifts between him and Shu, just to make their rivalry that much more of a "rivalry." He has been traveling with Zola for some time now and knows about "The Book of Origins" and the history of the Seven Warriors of Light. He is the complete opposite of Shu, leading them to their rivalry. But the one thing they both have in common is that they both have the strengh and willpower to defeat the Grand Kingdom if they try hard enough.
Chiharu is Tatsuya's and Mai's father. He is always away, because he is on various treasure hunts and adventures. He can be associated with "Indiana Jones", because of his looks and profession.
Jin is Natsuki's older brother and is also one of her co-workers at the restaurant that their father owns. He constantly makes his sister angry when at work which gets him thrown out of the restaurant, usually breaking a window on the way out. Everything he breaks due to this act is taken out of his paycheck.