The ending is happy and there are no regrets in the ending.
They believed in it, they protected it, and they believed in it, but after knowing the truth, it all turned into pieces...
Everything is just a game, and the funny thing is that the people in the game know that they are pawns but can't resist... Maybe I believe that the beauty on the surface can hide the sadness in my heart...
The situation is broken?
So...
"It's good, but it's a pity that we can never go back to the past."
"Why worry so much? I just want the rest of my life to go smoothly."
"Yeah, it'll be nice to come back."
"It'll be nice to come back..."
Intention: Let all regrets become a happy ending next time