"I met a bird and it was my only friend."
"I brought it to my house, and then it flew away and never came back."
"I met someone and she was my only love."
"I went through everything with her and then she disappeared and I could never find her again."
Cold man? Cheerful woman
Two-way healing, care for each other.
Change the male protagonist bit by bit, and save the female protagonist bit by bit.
Purpose: Love the world and change all misfortunes