She is the new owner of fashionable time travel;
He is a young and energetic martial arts leader;
She is a weak and beautiful saint;
He is a knight who is famous all over the world.
She is very cute and irritating; she is very glamorous and very pitiful;
He is both cold and tender; he is unruly and dedicated.
When a new human being accidentally travels through time and becomes the "first female killer", when tasks come one after another, and when the most difficult choice is before us...