Battle Slime 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

The Earth, swept away by the Third World War using nuclear bombs, drives humans and living things to the brink of extinction. A world that has lost the concept of a nation and has become nationalized. The Titan Company gradually recovers the devastated world using slimes and monopolizes resources while growing into a unique company on the planet. Titan has only one goal. Combining slimes and growing children to create a black hole on Earth. Then create a god who will make his ambitions come true. This is a story about the struggle between reckless Noah and cranky Ark.