Senior Brother Is so Fierce

One hundred years ago, 300,000 human beings were brought to a wild island by a mysterious sinkhole. Human beings fought hard for a hundred years among endless monsters before they rekindled the fire of civilization and established Summer City! That year, Jiang Li was reborn at the age of eighteen and returned to his seven junior brothers. He also unexpectedly received a magical Gate of Order. As long as he killed evil people, he could become stronger! As a result, a fierce senior brother was born!