Komami is a Puchidol, a miniature chibi-like lifeform resembling human idols from 765 Productions. She lives with Koami and Yayo under Takane's care, forming a distinct trio within the Puchidol group. Komami shares a symbiotic relationship with Takane, absorbing her excess body heat to regulate temperature as a biological cooling system.

This reliance shapes her seasonal behavior; Komami enters prolonged hibernation during winter months as the colder environment drastically reduces her need and ability to absorb heat, rendering her largely inactive and unseen. Her name follows the Puchidol naming convention, incorporating syllables referencing Kotori and Haruka.

Komami originates from the same unspecified island as Harukasan, Chihya, Io, and Koami, a location where Puchidols are revered as divine beings. She shares this divine heritage and cultural background with these specific Puchidols. Unlike other Puchidols exhibiting flashy supernatural abilities like multiplication, teleportation, or animal summoning, Komami's documented role centers solely on her passive, supportive physiological function for Takane, lacking any additional powers. Her character development across official media focuses on this functional relationship and her place within Takane's specific Puchidol group.