This is an automatically translated description

Yuras is no ordinary crucian carp. He somehow got used to living in sea water. And there you have it - our hero finds himself in a cosy sea bay. But he only dreams of peace and quiet! First, there is a fight with fighting fish. Then he meets the wise eel Igor. And finally, the mystery of the Black Squid: you can swim into its cave, but you can't return... But Yuras would not be a sea carp if he didn't try to solve the riddle. He entered the cave... And what happened next - read on! And keep your fists crossed for your new friend! That is, swimmers. And go ahead, the underwater adventures begin.