The man to 12-year-old Sophia’s left made her a silly promise when she first started treatment for scoliosis, but the dance-loving tween probably didn’t expect him to keep it. She definitely didn’t expect Willis-Knighton Cancer Center’s entire advanced proton radiation therapy team to get in on the action on her last day of treatment— but that’s exactly what happened. YouTuber Jpetikas shares the heartwarming video that reveals just exactly what that promise was.