They are apart of the '99 liners with Mark Lee. I can't imagine how much they probably scare poor introverted Mark. But it would be cute to see if Xiaojun and Hendery could pull Mark's inner extrovert out if they got to spend more time together. I would love to see the '99 line do something together! I'm so happy at how confident Xiaojun has become and how much courage both Xiaojun and Hendery had to show the whole NCT their crazy, wackey, fun side! You two were hysterical!