Komami is a Puchidol, a miniature lifeform resembling Ami Futami. Originating from a south seas island, she was transported alongside her twin Koami to 765 Production by Azusa Miura. Takane Shijou adopted both twins as their caretaker.

Komami consistently engages in mischievous behavior, specializing in pranks with Koami. This prank-pulling defines their interactions within the agency and remains their core activity across all appearances. The twins share an identical background and behavioral patterns.

Unlike other Puchidols, Komami resides with Takane Shijou, not her corresponding idol Ami Futami. She participates in group activities with other Puchidols but lacks individual storylines or character development separate from Koami. Her narrative role focuses solely on comedic interactions through coordinated pranks with her twin. She possesses no distinct personality traits, abilities, or narrative arcs outside this partnership.

Komami and Koami share an indirect link to a common origin with other island Puchidols like Harukasan, entities once historically regarded as deities. However, this connection grants Komami no special abilities or specific narrative significance.