a transfer student in Gekkoukan High School on Tatsumi Port Island. She is an orphan whose parents died on the Moonlight Bridge in their car during a fatal incident a decade ago. Kotone has auburn hair, which she always has in a high ponytail, along with silver barrettes which form the Roman numeral XXII (fool arcana), long eyelashes, and bright red eyes. always wears red earphones. she is very bubbly, funny, upbeat and cheerful. Her dialogue choices exhibit a broad spectrum of emotions