The gate to their room broke up and fell on top of those three. But, Kingslayer and Sumi were quick to grab the door and not let it fall on top of them.
Ryuga immediately got up after seeing the fall of the door. He gave a helping hand to support the door too.
The force from the zombie's side was this much that the gate had come off from its place.
They were in deep trouble. They couldn't hold on to the door like that forever. If nothing was done, zombies would evade their room easily and if that happened, there would be no chance for any of them to survive.
All three of them put all the force of their body into supporting that door from falling. It was their last defence which protected them from the zombies.
But, even that defence was about to fall down.
Toshi heard the sound of the door bursting out and knew that those guys had again gotten themselves into trouble.
All the zombie's attention had diverted from Toshi and they all ran past the room he stood in.