The Hero's NTR Adventure

The demon lord is threatening world as usual, and this time, - hero Roy and his childhood friends, priest Marie and warrior Sasha are here to save the world. - During the journey, they encounter a strong mage, who enters their party. - However, he's not after the demon lord, he's after the girls... - The hero is weakened and cursed by the man's magic, and can contribute nothing to combat. - However, his Hero's Sword is needed to take out the demon lord, so he can't give up. - And all the while, behind his back, his party members are getting cucked...