Mui

""Zhīdàole. (Understood, sir.)""

Mui (ムイ, Mui) is Shen's subordinate.

Appearance
Mui is a short girl of chinese descent. Being Shen’s subordinate, she wears the same outfit as him.

Personality
She acts like a secretary for Shen, whom she seems to be in love with.

Intro Arc
Mui welcomes Shen after he comes back from his fight with Andy. He comments he had a good fight and asks her to smooth things with the top brass. Mui tells him that at lake Baikal is Gina and she is in pursuit of Andy, but Shen believes that Andy and Fuuko will handle it.

Spoil Arc
Mui helps Fuuko dress with the Union's uniform. As Fuuko wonders if she will be coming with them, Mui explains that she is neither a Negator or member of the roundtable and because of that she doesn't have an emblem and can't participate in quests. She then asks Fuuko to look after Shen.

As Andy comes and touches Fuuko accidentally, a magma erupts from the wall and Mui quickly plucks it. An alarm rings and they are informed that an UMA No.1129 has escaped. Mui reveals that UMA Clothes and that it latches on a person transforming to their most desired clothes and as the person is bewitched by the clothes, the UMA takes control of the body and goes on a rampage. As the Clothes attack Andy and he knocks its host, preferring females, Clothes latches on Mui, but her clothes barely changes. Using Mui, it attacks Andy and Shen, but Fuuko manages to touch her and knock her out with her unluck. Mui apologize for her disservice to Shen, the one who saved her life, but he tells her her kung-fu was amazing and her daily training paid off.

She later analyzes Spoil's beam and tells Shen that it exceeds the rules of Spoil and disintegrates anything it touches. As their fight continues, she manages to pinpoint Spoil's exact coordinates and Shen manages to send Spoil and Andy is space. When Andy came back from space, by Shen's orders, she beams Spoil's core and captures it.