Character profile
Sumi Kuroi
黒威すみBiography
Sumi Kuroi is a wealthy, spoiled 17-year-old who looks much younger and becomes Ink's rival over their shared feelings for Nao. She and Ink were once friends, and her expressive strand of hair visibly reflects her moods.
Story spoilers
By the end of the series, Sumi's feelings for Nao seem to have largely faded as she begins developing affection for her magical partner Ka-kun and repairs her friendship with Ink. She can transform into the magical Tempera Sumi using a red flip phone, gaining a cat-themed outfit and red hair.
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