There is a Japanese anime that tells the story of people who become a family one day while hiding their own secrets.

The Japanese anime "SPY × FAMILY" is an anime set in the Cold War era of a fictional world, with a setting in two divided fictional countries, the Western "Westalis" and the Eastern "Ostania". While the official timeline setting has not been announced, the setting is based on the division of Western countries, and it is speculated to be based on the divided Germany during the Cold War era.

"Twilight", a code name for the capable Westalis spy "Loid Forger", is assigned the mission "Operation Strix" to contact the Ostania politician "Donovan Desmond". With direct contact with Donovan Desmond being difficult, Loid Forger decides to form a fake family to make contact through Desmond's son.

"Anya", the daughter Loid Forger brought home from the orphanage, has the psychic ability to read other people's minds. Anya, who read Loid's mind while he was choosing a smart child from the orphanage to enroll in the same school as Desmond's son, acts in a way that pleases Loid and is adopted by him. Anya lives as Loid's daughter, hiding her psychic abilities.

Anya passes the written entrance exam for the same school as Desmond's son with her mind-reading skills and prepares for the interview. However, both parents had to attend the interview, and Loid hastily began to look for a woman to play the role of his wife.

"Yor Briar", who works as a government official but is actually an assassin, is having a hard time with the looks she gets from others because she is not married and is looking for a formal lover. Anya reads Yor's mind and tries to make her the mother, and eventually Yor becomes a member of Loid's fake family.

"SPY × FAMILY" is a manga that has been serialized in "Shonen Jump+" since 2019, and the first volume was published in Japan in the same year. As of 2023, 12 volumes have been published. It was the first time in the history of "Shonen Jump+" that the number of comments on the first episode exceeded 2,000. In 2023, it surpassed 30 million copies in circulation and became a popular manga. Due to its popularity in Japan, it has been translated and published worldwide, including Korea, China, Southeast Asia, North America, South America, and Europe.

It became even more popular when it was broadcast as an anime in 2022, and the anime was also dubbed and aired in Korean and North American versions.

In particular, the opening song for the first season of the anime was sung by the popular Japanese band "Official Hige Dandizm", and the ending song was sung by the famous Japanese singer "Gen Hoshino". Gen Hoshino also sang the theme song for the theatrical film "SPY × FAMILY CODE: White" released in 2023.

"SPY × FAMILY" was published as a novel titled "SPY × FAMILY: The Family Portrait" in 2021 and was also released in Japan as a video game titled "SPY×FAMILY Operation Diary" at the end of 2023. This game is scheduled to be released in Korea and North America in the first half of 2024.

"SPY × FAMILY", where three people with secrets live as a fake family and gradually learn about each other, feeling the warm family love that blossoms, is currently available on Netflix for both the first and second seasons of the anime.