|Anime Debut||Episode 17|
Yappi is a pink rabbit mascot played by Hikari.
Yappi is the pink rabbit mascot. The person inside of the costume playing Yappi is Hikari. She speaks with an accent and always says "Pyon" at the end of each sentence. Yappi appeares in lots of festivals in the series as a funny mascot. Yappi also seems to get into lots of trouble but is always saved by Kei, because Kei knows that inside of that costume, is his dear Hikari.