Deep Sea Firmament

Jiang Hao, a ship chief designer abandoned by the industry, bets everything on a set of anomalous deep-sea data and builds humanity's first deep-sea vehicle, the "Ocean Spaceship No. 1." From being blacklisted to surviving nine deaths, from a knock at three thousand meters deep to irrefutable proof of the existence of merfolk—in Chapter 100, he returns with a secret capable of overturning the world. — Description from novelcodex.orgFull novel: Deep Sea Firmament — read the rest free on N​o⁠v​e⁠l​C⁠o​d⁠e​x⁠.​o⁠r​g⁠