They didn't know each other originally, but they had a certain degree of contact at home.
Inadvertently, they discovered the truth about a secret in their respective families.
They only formed an alliance because they wanted to fight for justice for their loved ones, but they accidentally found the love of their lives.
When they were trying to develop, a black hand quietly reached out.
I wonder if this pair of incomparable wise couple can find this evil hand? Will it bear fruit in the end?