The Little Mermaid in Andersen's works foolishly sacrifices for love without asking for anything in return, just like Yamamoto's bright smile to Gokudera again and again.
It would be great if this fairy tale only belonged to us and nothing else.
No prince, no princess, no everything...
There's just each other
"Even if the ending is destined to be sad, I can't stop loving you."
"..."
This fairy tale belongs only to them and has nothing to do with anything else.