Actually, Hong Dali only installed the Running Dog System into the garments for fun. Therefore, the password he set wasn't very difficult, it was only the phrase which he really liked—Dali Creates Miracles.
The problem was, knowing the password was one matter and saying it out was another.
For example, the mysterious man was the leader of all the people in Heavenly State. He couldn't be expected to shout "Dali Creates Miracles" whenever he wanted to use the garment, right? If that happened, the whole world would probably know of it very quickly. How was he supposed to face the world, then?
The mysterious man hesitated while the Bureau Chief wanted to laugh, but he didn't dare to and had a hard time keeping his laughter in.
The important thing was that the experiment still had to be done in the end, they had to have at least a rough impression of this armor, right?