What does it feel like to be a good at calculation?
You can count your past and present lives, and even save the common people in exchange for peace - "I hope for peace in the three realms, even with my own strength."
What does it feel like to love someone who is calculating?
He could die for her, pay any price, or even accompany this madman to save the world - "I love you, that's all."
(Warm reminder: Ruoshui is the protagonist)