World 1: Song of the Sirens.
"As long as you are here, I can go on to any future seriously."
"I will always protect you, my highness."
World 2: The Heartbeat Theorem.
"I don't want you to be my limit."
"... Why"
"The limit is infinitely close but not close, miss."
"My power is to protect you."
Before I met you, I never thought I could become indestructible.
"Nothing in the world feels the same way."
"Do you like reading novels?"
"Would you be moved by the story?"
Finally on this day, she discovered the truth about the world.
Her life was completely disrupted and reorganized, she remembered some of the future, and she had the consciousness of being the protagonist of each world.
What is true and what is false?
If you already knew the future, would you still live seriously?
Purpose: live a good life without real empathy