For The Immortal Me, Obliteration Attacks Are Nothing is a Manga/Manhwa/Manhua in english language, academy 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

Legend has it that the great demon who cultivated immortality blew himself up under siege from the orthodox sects and was reborn, rising to the top again in the name of the Destroyer. By virtue of his immortal body, feats, secret medicines and forbidden arts that others cannot use… are all no problem! Disintegration and self-explosion are just ordinary tricks! In this life, he must cultivate immortality, be swift and vengeful, and rampage through the world!