TV-Series
Description
Katie Minami (Kaede Minami in Japanese sources) is a 13-14 year old girl with blonde hair and brown eyes, symbolized by a heart reflecting her cheerful, energetic, and kind nature. Though typically sweet, caring, and helpful, she can display anger when provoked. Academically, she achieves mediocre results due to clumsiness and perceived lack of focus.

Her story starts after purchasing a mysterious blue cocoa mug rumored to grant love wishes. Following the engraved instructions, she pours hot cocoa while wishing to date classmate Dylan Yuki (Setsu Yuuki), summoning Mirmo, a muglox prince fleeing his world to avoid an arranged marriage. Katie initially fears Mirmo but soon befriends him; he becomes her partner, and she regularly feeds him chocolate and Kumo!cho (Cloud Chocolate).

Katie harbors a significant crush on Dylan, fueling a prolonged rivalry with classmate Azumi Hidaka that drives her early actions, though her awkwardness often hinders her efforts to attract Dylan. Wealthy classmate Kyle Matsutake (Kaoru Matsutake) develops feelings for her starting in episode 9, which she does not return. Her best friend, Etsumi Kido, supports her but remains unaware of the fairy world.

Key developments unfold across story arcs:
* **Regular/Original Arc**: Katie defends Dylan against Azumi's aggression, nearly leading to a physical fight. She temporarily attends fairy school in Mirmo's realm, gaining a fairy form with wings, a pink outfit, and a microphone instrument. This microphone enables powerful magic used against threats like the Warumo Gang but is destroyed saving the muglox world. She briefly develops feelings for Mirmo's brother, Mulu.
* **Golden/Goruden Arc**: She befriends flute-playing transfer student Saori Eguchi, considering her an important friend. Katie tries to rescue Saori when controlled by a dark entity (Darkman), failing due to Saori's blocked powers. Saori later departs for Germany to study music.
* **Wonderful/Wandaho Arc**: She aids robot squid Tako in collecting seven sacred crystals using her pink cellphone. During this mission, her soul is nearly stolen by a shinigami in exchange for Mirmo's chocolates.
* **Charming/Charmingu Arc**: Dylan initially chooses childhood friend Haruka Morishita over Katie, devastating her. Though she gives up pursuing him, she retains her feelings. When Dylan later realizes his love and confesses, Mirmo erases Katie's memory temporarily to ensure she accepts. After they become a couple, Mirmo faces punishment for staying in the human world, losing his memories and reverting to rabbit form. Katie perseveres to restore his memories and their bond, succeeding in the finale.

Katie's outfits include green/gray and blue/white school uniforms with red ribbons, and dresses featuring heart motifs or combinations like green/yellow or blue/pink/yellow. Her fairy form's distinct wings differentiate her from muglox citizens who use mechanical fans to fly.

Her relationships define her growth: unwavering loyalty to Mirmo, persistent affection for Dylan despite setbacks, and rivalry-turned-acceptance with Azumi, who concedes after Katie "wins" Dylan but warns against mistreating him.