Hoiii, because I am not the best with descriptions and I'm too lazy to try I built what the school looks like in minecraft :D

This is the iron door that blocks them from the outside

This is the hallway

This is what both classroom A and B look like

Mikaru's room

Hikaru's room

Ryan's room (the tv can only be used for video games)

Nick's room

Samantha's room

Rin's room

Sapphire's room

Emiko's room

Lance's room

Takashi's room

Arata's room

Tyler's room

Noaki's room

Yurika's room

Lilac's room

Crystal's room

The stairs to the next floor
(Because i went to the limit the rest will be in the next chapter)