With no other options, Luck makes the choice to hold the line against the unending demonic hordes alone, to make sure his comrades can escape with their lives. However, through a combination of fortune, skill, and ingenuity, he holds that line for ten straight years, eventually coming out on top single-handedly. Now he has to tackle the dilemma of how to occupy himself in a world where he holds a myriad of roles: that of a legend, that of a veteran, and that of a brand new face. <em class=de-emphasized>(from manga)</em>