Mu

A girl personified by Fellatio.
Despite her dainty appearance, she is a competitive, sassy girl with a sharp tongue.
She is unable to be honest with the people she likes, and is a natural born devil.
She is shy and blunt with the other heroines, but with the hero, she treats him with particular scorn and hides her embarrassment by treating him in a half-aggressive manner.
She is harsh to the protagonist, but when other heroines approach him, she immediately gets jealous and grumpy.

In fact, she is lonely, fearful, and eager to be pampered, and even though she appears sharp on the surface, her true nature is hidden here and there, and those around her rather love her for her stubborn side.
She has the most common sense among the onahole girls, but because of this, she is the one who gets pushed around the most.
She is the least qualified of the maids and makes many mistakes, but she makes up for her shortcomings with hard work.
When her hard work is recognized, she becomes childishly delirious, as if her usual demeanor is a lie.