Wacristian is Cristian's very tall and skinny rival, and Zicolas' partner. Wacristian made his debut in Super Nicolas 2014, and since then, he has made playable appearances exclusively in Super Nicolas franchise's spin-off titles. He has been voiced by Nicolas Mejia ever since his debut. His name is a portmanteau of the Japanese words, Warui and Kurisutian, meaning "bad" and "Cristian". In addition, his name is an anagram to the Japanese word Ijiwaru, which can mean "ill-tempered" or "cruel".

The details of Wacristian's past are unclear since he has no confirmed background, although he has evidently been antagonizing the Nicolas Heroes, especially Cristian, for quite some time before his debut as seen in the opening of Super Nicolas 2014, where he and Cristian confront each other. He has a particularly strong rivalry with Cristian, who he constantly harasses, but he apparently has animosity toward most others in the Hiroo Kingdom, except for his partner, Zicolas.