No premiere date or PV yet. Check out the Crunchyroll article for more information. Synopsis of the source light novels from AniList:

One day, a gamer played video games until he fell asleep…and when he woke up, he found himself in the game world–as a skeleton! Equipped with the powerful weapons and armor of his avatar but stuck with its frightening skeletal appearance, Arc has to find a place for himself in this new, fantastical land. All his hopes for a quiet life are dashed when he crosses paths with a beautiful elven warrior, setting him on a journey full of conflict and adventure.