Gaikotsu Kishi-sama, Tadaima Isekai e Odekakechuu II

Arc returns! After waking to find he's become a Skeleton Knight in his favorite fantasy video game, Arc, Ariane, Chiyome, and Ponta band together to take on evil. Before Arc's search for a cure to his skeletal condition continues, he must face a dogmatic leader, Count Hilk, to free oppressed elves and beasts. A new chapter begins as the Skeleton Knight fights to make his new world a better place.

(Source: Crunchyroll)