Gaikotsu Kishi-sama, Tadaima Isekai e Odekakechuu

A gamer wakes in a fantasy world as Arc, his powerful in-game character, complete with rare armor, overwhelming abilities, and one serious problem: beneath the helmet is a skeletal body. To avoid panic, Arc hides his appearance and registers as an adventurer, hoping for a quiet life of quests and travel. That plan quickly falls apart because he cannot ignore people in danger. After crossing paths with the elven warrior Ariane, Arc becomes involved in rescuing enslaved elves and exposing schemes that reach into the kingdom's politics. His casual wandering soon begins changing far more than he intended.