きあいさん
A [[Nijiura Maids|Nijiura Maid]].  Her design is inspired by a [[Capcom]] character, similar to how [[Hayai]] is inspired by Sonic/SEGA. I'm not sure if there was a specific character in mind, but her appearance/personality seems like a combination of [[Kasugano Sakura]] and [[Wakaba Hinata]].

Her name comes from [i]kiai[/i] - "fighting spirit."
kiai