"S-level Mission?" 

When the group arrived at the spacious net, their eyes were immediately attracted to the center of the cave where there were countless strange materials piled up, forming a comfortable nest. 

Inside the nest, a strange monster was sleeping peacefully with its eyes closed and its belly turned up. 

The monster even had time to blow bubbles while it slept innocently. 

However, the size of this monster was the same as an adult dolphin, so it was not really a 'cub' in a sense, right? 

The group didn't know whether this monster was the cub of the mysterious monster that they wanted, but anyway, this strange monster should be a teen version of the mysterious lake monster. 

The group didn't dare to approach the monster rashly and because they had not passed the line, the little monster with a strong territorial feeling didn't detect anything wrong.