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

Rud, an adventurer with the highest defence ever recorded, serves as a tank while exploring dangerous labyrinths in search of a treasure capable of curing his ailing sister. After being unjustly expelled from the Hero’s Party, he discovers the true nature of his hidden abilities and begins forging a new path alongside the companions who recognise his strength and selfless determination.