Currently, we know five symbols that can activate the corridors.
Several people seem to be able to exert Shukuchi only on certain symbols.
Each of them leads to a certain type of environment and to a different network of corridors.
Below is the type of corridor activated by each symbol:
Star
Star Brings to sideral environments.
Planets, orbital stations, cosmic void.
Square
Brings to confined spaces.
Rooms without doors or windows.
Cross
Brings to open spaces.
Meadows, forests, deserts.
Circle
The corridor seems never to end.
Wave
Brings to aquatic environments.
Seas, lakes, pools.