Gaikotsu Kishi-sama, Tadaima Isekai e Odekake-chuu

Alternate Name: 
Le Chevalier Squelettique, découvrant un nouveau monde
Skeleton Knight, going out to the parallel universe
Skeleton Knight, in Another World
Рыцарь-скелет в ином мире
บันทึกการเดินทางต่างโลกของท่านอัศวินกระดูก
骸骨騎士様、只今異世界へお出掛け中
해골기사님은 지금 이세계 모험 중
Status: 
Ongoing
Author: 
Hakari Enki
Artist: 
Sawano Akira
Type: 
Manga

Gaikotsu Kishi-sama, Tadaima Isekai e Odekake-chuu summary:
The protagonist fell asleep while playing an online game. However, he awoke in a strange world with his game character’s appearance. In a state of shock, he noticed that he was equipped with nothing but his strongest weapon and armor. To make matters worse, our hero’s appearance was changed by the special avatar skin 『Skeleton』 when he enter this new world. The protagonist wanted to live without drawing attention, but he got acquainted with the dark elf Ariana and received her request.
This very similar to:
+ Overlord