Izumi Rio (イズミ・リオ Izūmī Rīo) is the partner of the shinigami. He make his appearance in episode 29 the second series. Izumi recognizes Meroko and also is has a partner ghost named Jonathan, And he can turn into a cute plush dog.
- His voice in the dub will be Johnny Yong Bosch, And shares the character with Nate and the actor of Adam Park.
- Izumi Rio will be in Adventure of the Jewel Kingdom from Power Rangers Harmony Force and he has a Time Force Blue Ranger costume and the items.
- Izumi is a first villain that he make troubling with Takuto Kira and Meroko Yui, and he wants Mitsuki's soul, and in the final chapter he becomes a good and intelligent person.