C3373 Once Is Good Enough

"They've already set off, they should be here soon. " A man in researcher attire walked up and said to an old man wearing glasses.

"Hm. " The old man responded, his eyes deep as if he was weighing something.

"Teacher, do you want to. . . " A male researcher next to him looked at the old man nervously and said, "Do you want to activate the special defense?"

"Not for now. " The old man said