[Machine Translation] The most powerful villain sergeant gains new equipment in a new city! I, Ooga Verret, son of a villainous lord, have finally been given the title of "Saint"... I'm really not happy! What is a saint for a villain? However, I was also facing an imminent decisive battle against "Thunderbolt Flowne" and it was imperative that I acquire new equipment to replace my overworked right arm. On the recommendation of the national sorcerer, I headed to the "Independent Machine City of Enkhartun" and visited the best workshop in the city. He meets Euery, the daughter of the workshop head. She is in the middle of a quarrel with her father, who wants to be involved in the production of magical tools on the same level as her father. I can use this to my advantage! But then Masilo, Alice, Karen, and Reina all ask her out on dates at the same time! What's going to happen to my harem life~! The life of a sergeant who does good and YES, does bad is about to enter its fourth act, the "Independent Machine City Arc"!