(Dual heroines + science fiction + psychological suspense + affectionate sadomasochism + dual-line narrative + multi-perspective reversal)
"Once upon a time, there was a girl who liked someone very much. No matter it was sunny or rainy, she always followed that person. The girl knew that that person liked silence, so she always followed quietly, not disturbing her life, and just watching her silently."
"One day, the person the girl liked was bullied. The girl couldn't see it, so she stepped in to stop those who bullied her. Then the two got to know each other, and then they got closer and closer, and finally came together."
"But, one day a long time later, that person disappeared. No matter how the girl looked, she could not find her."
"Later, the girl did something stupid. She used a certain method to go back to the past and be with the person she liked again. But the cost of doing so was high, and the girl lost the qualification to return to the original world."
"Hey, does the girl regret it?" The man asked softly.
"I don't regret it." The girl said.
Even if I do it all over again a thousand times, I will still run towards you regardless of my own safety.
Because this is the agreement between us.
