Spy x Family is a hugely popular action/comedy anime series that blends 1960s Cold War intrigue with cozy themes of found families, school life, and much more. The story follows Agent Twilight, a WISE spy who was told to form a family so he could investigate Donovan Desmond in the hostile nation Ostania. Twlight assumed the name Loid Forger and built a charming found family with his wife Yor and their foster daughter Anya, and that's where their real adventures began.
Source:https://www.cbr.com/spy-x-family-every-arc-ranked/