This planet is almost entirely covered by seawater. Humanity lives and thrives in the water, awakening their beast-mastering abilities to withstand the endless sea beasts. Jiang Chen's pet is an ordinary fishing cat, but just when he thinks his life will be like this forever, he awakens a heaven-defying beast-mastering talent: [The Illustrated Book of Marine Life]. [The Illustrated Book of Marine Life]: After obtaining the blood of a sea beast, he can extract the beast's skills and bloodline and transfer them to his pet. From then on, Jiang Chen's life changes drastically: A fishing cat—two-tailed fishing cat—three-tailed fishing cat… nine-tailed fishing cat! Pistol shrimp—iron-arm pistol shrimp—steel cannon arm shrimp—xuanjing steel cannon arm shrimp—dragon gate cannon shrimp! Blue crystal turtle—armored turtle—two-headed armored turtle—two-headed armored snake-mouthed turtle—two-headed Xuanwu! Half-moon fighting fish—iron-fin half...