"The entrance is at the end of this path, on the upper left side. Push the plank, and you can go up to the third floor!"
From this Ninja's mouth, Greg Jensen learned that the entire castle had a total of five floors.
The first floor was the hall for meetings, mainly used for receiving outsiders.
In other words, those who could usually enter the castle didn't have the qualifications to go upstairs, and could only converse with them on the first floor.
The second floor was a dormitory for the group, where the research personnel stayed. Nearly thirty Ninjas took turns replacing each other, stationed there to prevent any personnel from escaping.
The third floor housed the artificial planting base, where a large amount of scientific research raw materials were produced.
The fourth floor was mainly the site for scientific research, chiefly responsible for the mass production of Soul-snatching Flowers.
