He stood at the back, watching her as she came back and grew into her mature state, he asked to guard her and become a lunar guard. His wish was granted and he asked her if he could be her personal guard, it was risky but it became reality.

He told her when she asked how he knew he wouldn't go to her sister in the end, and he responded with;

“Cause even if they believe she should be first, you'll be first for me. No one can tell me otherwise.”