The Rising of the Shield Hero Volume 12 :

After defeating seemingly immortal invaders from another world, Naofumi finally manages to convince the Sword Hero, Ren Amaki, to reconsider his ways. Having reclaimed their peaceful day-to-day lives, Naofumi and his slaves head back to the colosseum to hone their skills in battle. But once there, they are confronted by an unbelievable sight: the Bow Hero has assumed an alias and is completely absorbed in earning fight purses in blind pursuit of his own sense of justice! With the Bow Hero being manipulated by the wicked Witch and consumed by a curse, will Naofumi be able to bring him to his senses?! Will the quest to reform the heroes finally come to a conclusion?! Find out in volume twelve of this otherworldly revenge fantasy!