Kageyama Eimu, a first-year high school student attending Leonis Adventure Academy, possesses a unique innate ability known as a blessing. Unfortunately, his blessing, called [Sure Hit], is perceived as a dud since it merely guarantees hitting enemies within his visible range—a skill aptly named [Sure Hit]. Choosing the Archer job to make the most of his blessing, Eimu diligently engages in dungeon conquests to become stronger. However, his level progress is sluggish, compounded by the Archer job’s lackluster reputation, leading to constant harassment from his classmates. One fateful day, Eimu makes a startling realization. The effect of Eimu’s [Sure Hit] extends not only to visible enemies but also to those he senses through the Archer’s detection skill. Realizing that he can hit enemies at a considerable distance, even those invisible to the naked eye, Eimu expands this range further. Soon, he gains the ability to unilaterally attack monsters from the upper layers of the dungeon and even from outside. Through this seemingly cunning yet rational leveling strategy, Eimu starts effortlessly overwhelming formidable adversaries.