Rui is the eccentric crown prince of Japan,Tokyo.He has purple hair with some blue stripes & yellow bright eyes and wears elegant & traditional clothes.He is tall & handsome & often wears some eye makeup,making the girls drooling over him.He looks quiet,serious,weird & judging but is actually childish & mischievous.He doesn't have many friends & has a big interest of alchemy & robots & really likes animals & mythical creatures.