echoes is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here. You are reading echoes chapters on ManhwaZ, fastest updating comic site. The Summary is
A young man died and resurrected, and somehow obtained an ability to split himself. He thought he could start a brand new life, but somehow he was dragged into a battle between people that resurrected.