The Katvarna Empire and the Republic of Kioka are currently in the midst of a conflict, and Ikuta is a notorious idler and philanderer who strongly opposes war. Nevertheless, due to unforeseen circumstances, he is required to take the High Grade Military Officer Exam. Despite the odds against him, the 17-year-old astounds everyone with his exceptional leadership abilities, effectively leading his troops to victory. With his outstanding intellect, Ikuta skillfully navigates through the chaos of war and emerges victorious in a society deeply affected by the ongoing conflict.