The female protagonist who is cold on the outside but warm on the inside and has weak emotions × the innocent male protagonist who has a strong sense of justice
Everything is destined. Having been used as a test subject in her previous life, she came to the new world and felt the warmth she had never experienced before. The two grew up and communicated with each other through repeated trials. When they learned that he was born to protect the common people, then I came to this world to protect you.
The female protagonist is a slow-burning type, while the relationship between the male protagonist and the female protagonist is slow and steady.
Intention: You protect the common people, and I will protect you.