I was so touched when Key cried during the Saturday broadcast.

This is a video uploaded on the official Nolto YouTube channel. They were unable to appear on the Music Bank stage due to filming on Nolto.
You were filming on Saturday when your phone rang so much that you looked at it and saw that you won first place on Music Bank. You were so surprised that you were leaning on Taeyeon and crying.

It seems like you've prepared a lot for this comeback, congratulations!!
And I was really touched by the sight of him being so genuinely happy, and it made me feel proud to see him.
It's nice to see all the cast members congratulating each other. I'll have to watch it live since it airs on September 13th.
I think it's amazing how humble you are even though it's your 17th debut anniversary.