Himari Takakura  

, 高倉陽毬

The younger sister of two brothers, Himari is always cheerful despite facing health issues. She smiles to ease their worries. Following her release from hospital, she goes on a trip to an aquarium but loses consciousness and passes away. However, she regains life after wearing a penguin hat bought at the souvenir shop of the aquarium. When donned, Himari transforms into the Princess of the Crystal with a new appearance and demeanor.