Everyone has a part of themselves they cannot show to anyone else.

At a time when all nations of the world were involved in a fierce information war behind closed doors, Ostania and Westalis had been in a state of cold war against one another for decades.

The Westalis Intelligence Services’ Eastern-Focused Division (WISE) sends their most talented spy “Twilight” on a top-secret mission to investigate the movements of Donovan Desmond, the chairman of the Ostania’s National Unity Party who is threatening the peace efforts between the two nations.

This mission is known as “Operation Strix”.

It consists of “putting together a family in one week to infiltrate the social gathering organized by the elite school Desmond’s son is attending”.

“Twilight” takes on the identity of psychiatrist Loid Forger and starts looking for family members.
However, Anya, the daughter he adopts turns out to have the ability to read people’s minds while his wife Yor is an assassin!
As it is in their interest to keep these facts hidden, they start living together while concealing their true identity from one another.

World peace is now in the hands of this brand new family as they embark on an adventure full of surprises.