「みてみて！ 透明マントだって！！
どーお？ 消えた？」

“服が”透明になるマント！！

詳しくはCi-enで（一部誰でも閲覧）
https://ci-en.dlsite.com/creator/4565/article/1485112

"Look, look! It's a see-through mantle!!
How is it, did I disappear?"

It's a mantle that removes clothes!!

More on Ci-en (part of it available for everyone)
https://ci-en.dlsite.com/creator/4565/article/1485112