「おばあさんの目はどうしてそんなに大きいの？」

詳しくはCi-enで（一部誰でも閲覧）
https://ci-en.dlsite.com/creator/4565/article/1441028

"Why are your eyes big, Grandma?"

More at Ci-en (Partly available to anyone)
https://ci-en.dlsite.com/creator/4565/article/1441028