[Quick Transmigration] How Did I Become the Protagonist Again?

World One: Song of the Siren.

"As long as you're here, I can face any future with determination."

"I will always protect you, Your Highness."

World Two: The Heart-Pounding Theorem.

"I don't want you to become my limit."

"...Why?"

"A limit is something you can approach infinitely, but never reach, miss."

"My power is to protect you."

Before I met you, I never thought I could become invulnerable.

"There's no such thing as truly feeling what someone else feels in this world."

"Do you like reading novels?"

"Can a story move you?"

At last, the day comes when she discovers the truth about the world.

Her life is completely disrupted and rearranged. She remembers parts of the future and gains the consciousness of the protagonist in every world.

What is real, and what is false?

If you already know the future, will you still live your life wholeheartedly?

Theme: Live well. There is no such thing as truly feeling what someone else feels.