Influencer of the Apocalypse is a Manga/Manhwa/Manhua in english language, THRILLER 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

Hui Woo doesn't have much going for him in his boring teen life, except for an addiction to social media. That puts him in place to document his surroundings… including the moment when said surroundings go nuts.