Mikki seems to be a childhood friend of Roya. Mikki makes his first appearance in episode 2, in which he elaborates on his will to live up to the expectations of his sensei, Dumas. Mikki works hard every day within a field-like area, accomplishing simple tasks with Dumas. After Dumas was forced to leave his house, Mikki takes him to live in his family's abandoned house with Zed and Roya. This is when Mikki decides to start baking unique style bread as his new occupation, as a way to attain money. Other than baking bread, Mikki attempts to regularly become stronger as a Shard Caster, but seems to always fail in this endeavour due to having a kind and gentle heart. After Mikki later hears of Dumas' death, he seems to go insane. He kept striving for more power as to quell his suffering about how he could have been able to save Dumas if he had been stronger at the time. This insanity was caused when Robès had handed Mikey Dumas's Spirit. This seems to be a primary factor within the ways of the Spirit. Mikki later recovers from this and returns to baking.