Her real name is same like Arisu but her true name as magician is Arisa. Arisa is the resident of Sakura country, a world that full of unwithering sakura. Her mission is to fix unstable state of mana in Mizu country, Kagamijima, that lately flooding too much to Sakura country. To do it, she change place to Arisu by make Arisu to replace her position in Sakura country while she replace Arisu position in Mizu country to check situation at Mizu country. Her real hair color is same to Arisu but she dye it to gold using her magic to distinguish from Arisu. Her specialist magic is stabilization magic that Gen give to her family. There is another method too to distinguish her from Arisu if by any chance she have same appearance with her, that is her mole location. Her mole location is at her right thigh while Arisu is left thigh (base on Ichito remark).