C475 Sakurazuki's Battle Plan

"I know, that's all. This is the information that our spies paid with their lives to send back. The location of the entrance was also calculated by us. As for whether we can reach the seventh floor, it's still unknown."

Hearing that, Ivan shook his head.

What he knew was completely leaked by the spies who infiltrated the navy. As a price, the spy was exposed and killed