The portal video research listed that the second episode of the anime adaptation of the manga SPY x FAMILY achieved an audience share of 2.7% in the Kanto region, the most populous metropolitan area in the world. It is worth remembering that the first episode achieved a rating of 3.1%, but the number is still an excellent achievement, as mentioned in the comment below:
«Most franchises don't even get 2.0% viewers, let alone 3.0%. Also, One Piece is a prime-time primetime show, but SPY x FAMILY airs in the late-night slot where the viewership is much smaller. The same applies to almost all first-class animation programs that are broadcast in the morning or in the evening. It's not on Kimetsu no Yaiba's level, but it's still an excellent result». one piece has a 2.9% rating, but this is the difference one piece will air at 09:30 while SPY x FAMILY It airs at 11:00 p.m. in Japan.
The first part of the series, which includes the first twelve episodes, has been broadcast in Japan since April 9, while the platform crispy roll takes care of sales in the West. For his part, Tatsuya started publishing the manga through the website Shōnen Jump Plus from the publisher shueisha in March 2019. The work already has more than 12.5 million copies in circulation.
Summary for SPY x FAMILY
Known as "Twilight", no job is too high for the agent when it comes to peace. As the master spy of Westalis, Twilight works tirelessly to prevent extremists from unleashing a war with neighboring Ostania. For his latest mission, he must investigate Ostanian politician Donovan Desmond by infiltrating his son's school, the prestigious Eden Academy. The agent is thus faced with the most difficult task of his career: getting married, having children and playing family.
Twilight, or "Loid Forger," quickly adopts humble orphan Anya to play the role of a six-year-old daughter and prospective student at Eden Academy. As a wife, she meets Yor Briar, a absent-minded office worker who needs a fake partner to impress her friends. However, Loid is not the only one with a hidden nature. Yor is actually the deadly assassin "Thorn Princess" and for her, marrying Loid is the perfect cover. Meanwhile, Anya isn't the ordinary girl she seems; She is an esper, the product of secret experiments that allow her to read minds. Despite discovering her true identity, Anya is thrilled that her new parents are genius secret agents! Of course she would never tell them. That would spoil the fun.
Source: video research