Return of the Elemental Lord is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

This is a story about the king of elemental spirits who reincarnated as a human. His subordinates, the elemental spirits, have found him in the human world and are trying to help him remember his previous life.Original WebtoonElemental Lord (정령군주, lit.: “Spirit Monarch”, “Elemental Monarch” ) is a webtoon adaptation of the novel by the same name written by Sangyoung Seong, the author of the webtoons The Gamer and Wizardly Tower. Written and illustrated by Seungbeom Park, the author of the webtoon Wizardly Tower.