Susukihotaru is a shy half-spirit girl who looks like a normal girl with fox ears atop
her head. She is chosen to be a spirit representative in the Ministry of Spirit Affairs
and is partnered with Yoshinokazura Riken. Initially, she wants to be partnered with
someone else, as she thought Yoshinokazura is big and scary. When Susukihotaru was first brought to the manor by Kushimatsu, Susukihotaru did not have the power to fight, but once she met Zakuro she realized the spiritual power she possessed. Because of this, Zakuro means the world to her. Susukihotaru is able to empathize with objects and other people through physical contact.

Susukihotaru's voice is very sweet and soft, medium-high in pitch.