"Uchichichi All You Can Eat! The Animation" is the debut work of Metro Notes Studio in the 2D hentai genre. Before that, they did only small illustrated novel and sometimes released hentaiguy manga. One day, after a hard day's work, two elderly men, Director Mizuyashi and his Manager, decided to have a drink in a newly opened bar. However, when they saw the sexy waitress ushi kosu, they forgot why they even came here... Depraved old men