Alone at the End of the World: My Dark Contract 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

Before the rebirth at the end of the world, relying on foresight, Xiao Ran hoarded a large amount of supplies and unexpectedly awakened a darkening system, starting a different experience of the apocalypse. While others are starving, Xiao Ran enjoys hot pot and ice cola; while others hide and seek, Xiao Ran relies on a safe stronghold to hunt easily; while others complain about their fate, Xiao Ran has already completed his evolution and awakened his abilities. Xiao Ran steps on his former enemies, saying, "I don't want to kill you, I just want to torment you. I advise you not to..."