Arc 8Rainbow Feather’s Fall
Haihara and the Magical Girls defeated Rainbow Snake and exposed Kurosaki Asuka as Rainbow Feather, while Takanashi awakened the Golden Key’s power and nearly killed her. Haihara then revealed herself as a Devil King, pursued the Devil King Crystals, and set off on a hot spring trip with Kirishima Ai.
- Dark Feather joined Phantom Wind and Star Flower against Rainbow Snake Black Death Cult, and Phantom Wind transformed into Fang Trump Card to confront it.
- Fate Kite brought down Rainbow Snake, but Kurosaki Asuka seized Fallen Heaven, revealed she had impersonated Chameleon, and became Rainbow Feather.
- Rainbow Feather crushed Takanashi’s wand and Magic Crystal, but Takanashi used the Golden Key and Snake Crystal to transform into Thousand Sins—Reverse Scale and repeatedly killed her.
- Blue Iris tried to take Rainbow Feather away, but Haihara transformed into the Bird-Type Devil King and killed her before turning Kurosaki Asuka into a Monster under her control.
- After the battle, Haihara grew closer to Takanashi and Kirishima Ai, while Thousand Sins began training to control her immense power.
- Haihara compelled Sha Qina to submit, claimed the lunar Devil King Crystal, and declared that she wanted the other Devil King Crystals and a lost magical tool.
- Kirishima Ai chose to explore her feelings for Haihara during their hot spring trip, and Haihara and Ai began their journey together.