[ Hm. Yet another person without relevant information. ]

...I see. Nevertheless, I appreciate you taking the time to answer.

[ This boy is a newcomer. Perhaps that's why he hasn't come across anyone who could potentially be Robin. ]

It seems we share something in common. I, too, set foot upon this planet fairly recently.

[ The follow-up question feels natural. Sunday doesn't mind answering it. ]

She is my sister. ...I must know whether or not she is safe.