This is On Yui's past appearance. She is female. She has heterochromia. She is wearing a school uniform. She is friends with Nezu. She has white hair with black highlights.

This is Mya-ang's past appearance. She is female. She is friends with Yui. She is a pink shark demi-human. She wears cute clothes with oversized sleeves.

On Yui's current appearance. She is female. She has black hair with red highlights. She carries a large scythe decorated with a red ribbon. She is a friend and group member of Mya-ang. She is a member of Project Mya-On.

Mya-ang's current appearance. She is female. She has blue hair with yellow highlights. She wears a ribbon that is a mix of blue and yellow. She is a friend and group member of On Yui. She is a member of Project Mya-On.