The very annoying sister of Tiko and (she believes) Tickle. She loves nothing more than butting into whatever her "sisters" are doing. She often gets her comeuppance via Tickle's magic. Naturally, nobody believes her when she claims to have seen Tickle using magic.

On Chiiko's 11th birthday, her father gives her a special book. Inside the book is a trapped witch, Majokko Tickle. When Chiiko frees Tickle from the book, she uses her magic to pass off as Chiiko's twin sister.
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(Source: Anime News Network)

Hina Komori