C722 I Need a Key!

"But, the array formation you made, as well as the runic symbols, is truly a wonderful array formation. It's the same as the Big Dipper Formation I've heard of." White Crane Young Master said, puzzled.

"That's right! I didn't say it was a fake formation. I just gave it to him. Or... It's useless even if I give it to you. It's impossible to set it up