The story revolves around the fifteenth prince, Yelker, who is ignored by everyone due to the excessive number of princes. However, he obtains three invincible female knights and wreaks havoc. Despite Yelker and his companions still being inexperienced, they use their extraordinary martial prowess to overcome all difficulties by force. Although it mentions female knights and falling down, there are hardly any harem or romantic elements. The focus is primarily on battles, with occasional non-combat scenes mixed in. The story is essentially about the protagonists relentlessly slaying enemies, to the point where not killing is the exception. However, they are not sociopaths; they think, struggle, and worry like normal people while joyfully slaying their enemies. The narrative is structured as a war chronicle with exceptionally powerful protagonists, and the background of their rampages is also depicted. The book version was published by GA Novels on February 15, 2018. The series concluded on June 16, 2019.