As in "smooth graphics", but the Japanese word for it can also mean slippery, leading to this visual pun.

Wow-weeeeeee! I don't get it, but my movements are now all smooooth!

I forgive you! By the way, let's recap what happened in Phase 1 for those people who heard of our circle for the first time through this book!

Doing a bare-faced advertisement isn't half bad either, ja!

Phase 1 is covered in chapters 1 through 9 of Kansemble!