Underclass Hero

Underclass Hero summary:

A huge mysterious explosion that occurred in the middle of a city. In(燐), who received a curse from his master and started doing acts of kindness in the earthly world. RyuJin(劉進), a swordsman who is out to obtain revenge for his village. And the mysterious herb merchan Ami(俄靡). Their adventure to find out the cause and explanation for the grand explosion. Original webcomic: http://comic.naver.com/webtoon/list.nhn?titleId=497180