Spy X Family

A brief description of the manga Spy X Family: 
A cold-blooded and brilliant spy with the code name “Twilight” has always done his job clearly and quietly. He chose his profession, cherishing dreams of a better world.
He was used to extremely difficult tasks, the importance of which had the highest level, coping with which he put his life in danger. But this time…
The bosses sent in information about a new mission, for which the Twilight would have to start a family and pretend to be a responsible and loving father…