Esther

Esther is a joyful spirit, he only appears to children, most of the time he will play tricks on them with his magic, but will leave without leaving a trace after the calling of their teacher. 

Esther is mostly around ponds or swimming in the sea with mantas. They are a magic student and will love to show you their little tricks if you find them.

Often parent use them to scare children and portrait their tricks as very dangerous one, and say they are a very powerful magician. This legend amuse their teacher as she knows they still have a long way to go.