Calamity Leveling 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

A hundred years ago, “Mostro” began invading Earth from a mysterious otherworldly space that suddenly opened.
During the long battle, humans with special abilities emerged.
They came to be known as “Heroes” and fought against the Mostro to protect the world…