One is perfect soil, the other is an incomplete sun. People from two worlds met because of a murder;
He led her into the dirty world covered in blood and was reborn from the ashes. One after another bizarre cases, he led her to see through the selfishness and cold-bloodedness of human nature; one by one, he led her to see the kindness and helplessness of people's hearts.
Two imperfect people, two incomplete hearts, sparked different sparks in the inadvertent collisions...