The story begins with a little boy and a little girl who are neighbors. The little girl often laughs at the boy with mean words because of the boy's unfortunate family, which causes harm to the boy. Later, the girl moved, her parents divorced, and they each even had their own new families. The girl became the redundant person and has been living at her grandmother's house.
Until both of them grew up and had their own jobs, due to fate, the two met by chance and began an inseparable love.
Concept: Perhaps, everything that happens before a couple falls in love is fate.