Review Detail of Quickiler in Renegade Immortal

excellent novel. Translation is really good and update regularly. I love the story but the side character development suck. The world however is well thought and interesting. The only problem i see in this novel is the way martial skills handled, its confusing and repeating the same thing over and over with just difference name and slight change in apparent, ex: grey gas, purple gas, pink gas, black gas, rainbow gas, blue gas, diesel, white gas, green gas, azure gas, etc...