[ . . . . he turns to them, curious.]

Even if it's your duty to answer questions, I hope you'll refrain from doing anything painful on my behalf.

[if this line of questioning makes them uncomfortable - soo-won isn't the type to stop from asking questions, but he'll understand that in something as personal as this, it's not necessary to advance his interests.

only quell his curiosity]

But what is it like - to live without your memories?