Fuyuki had a reputation for being a bit of a troublemaker and a bully, skirting around just as much as possible without getting into serious trouble. His family had only recently moved from the Kanto region to Nalvia City in the Leazon Region, and he wasn't happy about leaving his old life behind and having to deal with a brand new location. Clearly he decided to express his feelings in the worst possible way.

He would eventually find himself Pokemorphed. Though, due to a strange glitching in the process, Fuyuki would end up as both a Plusle and Minun.

It was definitely a strange experience for the boy, now finding himself as two different individuals. Frequently on a similar wavelength, they were able to finish each others' sentences, and seemed to know what each other was thinking. They would eventually refer to themselves as Fuu and Yuki.

Fuu, the Plusle morph, would end up being a bit more squeamish and shy about things. Yuki, the Minun morph, meanwhile, ended up more peppy and gung ho. Both of them, due to their morphing, would find themselves having a hard time actively teasing and troubling others. Instead, due to the nature of a Plusle and Minun, were a lot more willing to encourage others on and cheer for them.

It wasn't long before the cheerleading team decided to snatch the two up... and dress them in cute uniforms as well.