Icy is from an otome game called "Wizardess Heart" 

Age: 20-21
Gender: Female
Significance: Lead
Age/Voice Range: Young Adult
Accent: American
Skills: Cooking, healing magic and animals communication skills. Specific routes only: Time Travel, Primitive Spells, Spellsinging etc.

Background:
Icy is an orphaned girl who lives alone in a small village in the mountains called Reitz. As a child, Icy lost both parents to an epidemic that swept through her village. Consequently she was raised communally by other villagers, and views them all as an extended family.
Icy manifested magical abilities unexpectedly at the age of six, gaining the ability to cast spells as well as a special ability to speak to animals. In the village, she used her abilities to act as a sort of magical veterinarian, speaking to animals to figure out their problems before casting the appropriate healing spells on them. The villagers viewed her as a dependable and reliable wizardess, but in reality, her magic tended to go haywire whenever animals are not involved.
Icy’s dream since childhood had been to attend Gedonelune Royal Magic Academy, and she sent applications there for several years. She idolized the great wizard Serge Durandal, who was said to be a great tamer of magical creatures, and hoped to follow in his footsteps.
At the start of the game, she finally receives what appears to be an Acceptance Letter to the school, and quickly departs to fulfill her dream.

Season 6 Onward:
Icy is portrayed as a grown woman. Her hair has gained a lot of volume and is now frequently tied up in her signature pigtails, but with circular bands with Jewels on them, that resemble bracelets in a way. Her eyes now have a sweet downturned look, and they are a gingery-brown color now. She doesn't have a buddy and is focused on her as a prefect candidate or in her prefect duties. She's shown to have surpassed her Fortitudo class and she even asks Yukiya and Elias to be her deputy prefects. She's more powerful and skilled with her magic and therefore she's looked up by other students. In season 6 she was recommended to be a Prefect by Klaus II, and she officially becomes one, even giving classes to her former classmates.