Yatsu

Yatsu (やっ) is a minor character of Demon Slayer: Kimetsu no Yaiba. He is a civilian that Muzan Kibutsuji bumped into at an alleyway in Asakusa.

Appearance
Yatsu is a short man with an average posture. He has a big forehead and shoulder-length black straight hair. During his appearance, he wore a yellow vertically striped haori over a light green kimono and a dark green hakama. As he was drunk, his face was flushed with significant red spots on his forehead and cheeks.

Personality
Yatsu is a stubborn, pushy and aggressive person who displays bully behavior. When he is the one at fault, for instance when he drunkenly bumps into a stranger, he blames the other and isn't satisfied with an apology. He tries to assert dominance over his victim through physical intimidation, by grabbing the victim's shoulders to stop him from leaving the scene, and through verbal intimidation by mocking the victim's clothes and physical appearance. It doesn't seem like he cares that the victim is physically taller than himself. As his older brother is much taller and bigger than most people, he may be more daring to display bully behavior with his brother always protecting him in case it gets physical.

He has a huge disdain for people from higher classes, as evident by his comments on the quality of Muzan's clothes.

He loves drinking, as evident by his suggestion for more rounds at bars. Even when alcohol intoxication caused a poor coordination and a fully flushed face, he tries to fool himself and his companions by not willing to admit being drunken.

Asakusa Arc
In Asakusa, Yatsu had been drinking at bars with his older brother and a woman. They are very drunken when they walk through an alleyway. While dancing around, he suggests to his brother to hit one more bar. When the woman asks him if he is alright, he says he is fine and not even drunken yet.

As he wasn't walking in a straight line, he bumps into Muzan Kibutsuji accident. Yatsu gets angry and yells at the him. Muzan silently apologizes and walks past him. However, this doesn't satisfy Yatsu who grabs the Muzan's shoulder and yells at him to come back. Muzan says that he is in a hurry and this annoys Yatsu more. He criticizes the Muzan's expensive clothes and while walking around to look at the man's face, he laughs at the Muzan's pale skin and claims he looks close to dying.

This last comment enrages the man internally, but Yatsu doesn't notice and continues taunting Muzan for not responding to his ridicule. Muzan suddenly raises a fist and brutally punches the drunkard into the wall, breaking his skull. The woman immediately runs over towards him and announces to Yatsu's older brother that he is not breathing.

Abilities
As an ordinary human, Yatsu does not possess any additional power or abilities.