The manga is about Koala who writes about daily life, whether it's good or bad, happy or sad, Koala treats every day as a precious day. Koala believes that today is a good day, and tomorrow will be a good day too.

The notorious divinely-skilled Mu Tianhou was suddenly ambushed, causing a stir in the martial arts world. Two upright disciples, Zheng Dongting and Zu Beiqiu (the useless brothers), met each other because of this. In order to help their younger brother Zu Beiqiu find his wife whom he had not seen for ten years, and also to find the real murderer who killed their master, a famous constable and a rich second-generation accidentally teamed up to venture into the world and embarked on an adventurous journey of delivering a divorce letter for thousands of miles. The two came to the Luo family in Yangzhou, but encountered the Luo family's massacre and were mistaken for the murderer. They were called "the two evildoers of Central Plains." Between the two of them, Zheng Dongting has martial arts that he cannot use, while Zu Beiqiu has martial arts that he doesn't know how to use. Although the brothers intend to clear their names, the misunderstandings of the various factions in the martial arts world continue to deepen, and the righteous martial arts people rise up to attack them. After experiencing manny dangerous situations, the two discovered that this was a big conspiracy against them...

Lin Fan, who was born in a noble family in Dalin County, was originally a peerless genius who was awarded the Tianjiao Order, but his martial soul was taken away by his fiancée, and he became a waste. When a mysterious demon parasitized Lin Fan and reactivated his abandoned martial soul, making him a rare dual martial soul physique, Lin Fan officially embarked on the road to rise, from a small county town to the heavens and the worlds.

The Yellow River, Yangtze River, and Lancang River originate from the same source, and three families known as "Water Evils" (Ding, Jiang, and Yi) live along the river. What are "Water Evils"? They can move freely in the water and possess the skills of geomancy, feng shui, and treasure hunting. Yi Sa, the last Water Evil of the Yi family, runs an "underwater bank" business along the Lancang River. During a "Golden Fortress" excavation, Yi Sa encounters and saves Zong Hang. To uncover the truth of what happened and to save himself, Yi Sa trains Zong Hang to become a professional Water Evil, and together with Ding Yudie, a Water Evil from the Ding family, the three enter the "Ancestral Golden Fortress."