Saikyou Tank no Meikyuu Kouryaku Tairyoku 9999 no Rare Skill mochi Tank Yuusha Party wo Tsuihou sareru

Rud is a tank of the Hero`s Party and is said to have the highest defense ever in history. The party often does labyrinth raids, but to Rud, it means more than just a raid. To cure his beloved sister`s illness, he is in search for the wish-granting treasure that might be hidden in those labyrinths. But one day, the arrogant hero kicks him from the party after an unsuccessful raid attempt, blaming ...