~!Rui was a member of the Twelve Demon Moons, having held the position of Lower Moon Five.!~

(Source: Kimetsu no Yaiba Fandom)

is the butler of Momiji Ooka's family.
Muga is a loyal butler of Momiji, who vows to do his best to support her and her romantic endeavor with Heiji Hattori. He is confident that Heiji's primary love interest, Kazuha Toyama, won't be an obstacle for Momiji. Momiji relies on Muga for second opinions. For instance, she asks Muga's opinion on Heiji and even sent him to Tokyo so that Muga could see him with his own eyes; Muga approves of Heiji as the choice for her future partner.

Muga is also analytic and careful about planning for Momiji, making him a trustworthy butler. During the first encounter with Heiji and Conan where he fell under suspicion of a murder at the Cafe Poirot, Muga easily improvised believable answers for Conan, Heiji, and the police's questions. Muga is apparently also stealthy because Conan and Heiji "could not feel his presence" and even the police didn't notice when he later leaves the crime scene.

__Race__: Human
__Age__: 25
__Abilities__: Superhuman Speed and Agility, Master Swordsman, Ninjutsu Master
__Occupation__: Superhero
__S-Class__: Rank 13

__Personality__: Flashy Flash is a calm and serious man but he also appears to be quite arrogant. Despite his collected composure, Flashy Flash has a tendency to be hasty and reckless. 

__Abilities__: As an S-Class hero, Flashy Flash is very powerful. In terms of speed, Flashy Flash is arguably the fastest S-Class hero in the association, except for Blast and Saitama. Flashy was shown to be strong enough to combat and kill two Dragon-level threats simultaneously. He can deliver powerful kicks that can stun Dragon-level monsters. He can also easily cut massive pieces of stone and create giant explosions throughout his fighting.

__Race__: Alien

Melzalgald was one of the Alien Invaders who attacked A-City. Its body is able to change shape and It has multiple heads, each of which is able to separate and form its own body.

__[Weibo](https://weibo.com/pengyao2010)__

Yao Peng

Characters