Quack went to pick up the ball and ended up in a strange world!
There, you join forces with new friends to defeat the monsters.
You must escape this swarming maze!

Opening the door connects to another world! Even when opening the refrigerator door, monsters appear, sending Gwak, the Devil Gwak, and Deok into a panic.
All of this is Kong's plan to steal Gwak's imaginary energy! But when things don't go as planned, Kong suspects Gwak has special powers and sends him to a dangerous other world.
Thrown into a world teeming with monsters, Gwak meets some cheerful new friends there, and Gwak overcomes the crisis by working together with his friends without having to use his "what if" powers.
In the process, Gwak feels a sense of satisfaction deep in his heart… .
Will Gwak be able to return to his original world? And the true identity of the demon Gwak is finally revealed! Find out all about it in "Gwak What If Volume 4"!