Spy x Family 1second-hand

The first volume of this manga. In a cold war between two countries, Westalis and Ostania, Westalis's best spy, known as Twilight, is given a mission: get close to the powerful Donovan Desmond, a man who only shows himself at his son's school events. To do it he must put together a family within a week and enrol a child at an elite private school, so he adopts Anya, an orphan, and marries Yor, an Ostanian civilian who wants to keep a low profile. What he doesn't know is that the girl can read minds and his wife is a professional assassin.