A level system novel with modern setting that’s not for those who have strong feelings about animal protection. A random chance allows MC to be equipped with a system that helps him transform into a fish and consume other fishes to level up, evolve and promote his skills/ gain new skills. I couldn’t get over the fact that the first thing he does is experiment with his own pet fishes from his fish tank. It’s somehow so...insensitive. He can use skills to change normal fish into rare fish. Later, of course, he goes out to buy fishes to consume, and has adventures raising money and selling the rare fishes he transformed. He has a girlfriend (but also has encounters with several beauties).
