Afu, a Miki Hoshii-esque Puchidol, emerges as an enigmatic miniature entity discovered by Ami Futami during a chance street encounter. Though initially met with skepticism from the Producer and Ritsuko Akizuki for her volatile antics, she secures her place at 765 Production by revealing a surprisingly tranquil side.

Driven by an insatiable obsession with onigiri, she orchestrates elaborate schemes to seize and hoard the rice balls, deploying stealth tactics when opportunities arise. Her physiology shifts with the seasons: summer triggers a chestnut-brown crop of shortened hair and a sudden clinginess toward male idols, most notably Makoto Kikuchi. This contrasts starkly with her default state—a lethargic, food-focused existence where she remains dormant for hours yet springs to life at the scent of sustenance.

A mischievous undercurrent fuels playful clashes with Miki Hoshii, sparking rivalries over both culinary treasures and the spotlight. Makoto’s indulgent feedings occasionally plumpen her frame, though her spirited antics persist undiminished. Despite quirks, she navigates office life alongside fellow Puchidols, adapting to routines while maintaining her eccentric charm.

Her origins remain an unsolved riddle, with no clues beyond her initial urban discovery. Across appearances, she reliably generates whimsical turmoil through culinary mischief and transformative quirks, her role anchored in perpetual, unchanging spontaneity.