Despite his strong reputation as one of the most experienced guards in Mebuki's local guild, Kikuru Madan feels he has wasted his youth and hopes to spend the remainder of his life like any ordinary person. However, his conscience stops him from retiring for now, as he is concerned about the guild's future without him. As if to help him find a successor, the guild's receptionist, Enome, assigns Kikuru four new recruits: the energetic beastwoman Hitamu "Hitamuki" Kyan, the prodigy Maidena Ange, the laid-back Toxico Dannar, and the steadfast Hanabata Nohkins. While each possesses considerable talent, they also exhibit traits that hinder their potential—such as Hitamu's extreme clumsiness and Hanabata's unintentional perversion. To make matters worse, monsters outside Mebuki's walls begin acting strangely by targeting women in a salacious manner, causing the party endless problems in multiple ways. Nevertheless, Kikuru remains determined to retire early; to reach this goal, the guidance he provides to the trainees will be absolutely essential.