Lud was known as the strongest tank in history, and he served in the Hero’s party as a tank carrying an enormous shield. However, when the Hero, Kiglas became irritated from being unable to progress through the dungeon as he hoped, he disparaged Lud as a burden with only stamina and chased him out of the party. Thinking of returning to his village to meet his beloved sister, Lud was travelling when he came across a girl who was being chased by a monster and saved her. The girl held the rare “Appraisal” skill, and when he requested for her to appraise him, the skill which he thought was useless so far was actually an incredibly powerful skill. With his great stamina and that skill, Lud brandish his power as the strongest tank—.