C106 How can it be possible to go back to the past

"But I've never touched these." I hesitated.

"If you don't have any contact with them, you should just learn from them. Aren't you bored? I just happened to find you something to do. "

Me: "…"

"If there's anything you don't understand, you can ask me."

From the looks of it, you're really going to leave this mission to me.

I bit my lips as my gaze gradually became resolute. I nodded