He could not send people on a perilous voyage to the ocean floor, and going himself was not entirely secure either. Letting hundreds of thousands of Liquid Metal Robots dive into the sea for reconnaissance was by far the wisest choice!
Although rescuing the Liquid Metal Robots would be difficult and dangerous, it was a risk well worth taking!
"I just hope the war across the three island chains doesn't take any unexpected turns while I am away in the Ancestral Land!"
Chapter 708