NANA: Meeting you is all the luck I have for the rest of my life, and that's enough
Chanyeol: I didn't know what love was before I met you. No matter what happened to you before, I will be with you from now on.
NANA: Transforming from a cocoon to a butterfly is painful, but I can endure it for you.
Chanyeol: We walk side by side, I won't let go this time
Some destiny cannot be changed, so we have to accept it