The title has a clever double meaning in Japanese. 'Oshi' refers to one's favorite idol or character that one supports.

So it can be translated as "My Favorite Idol" (referring to Ai) or literally "The Child of My Idol" (referring to Aqua and Ruby being reincarnated as her children).

No. While it features idols and musical performances, Oshi no Ko is primarily a psychological thriller and industry drama.

It deconstructs the entertainment world, dealing with heavy themes like cyberbullying, the dark side of reality TV, the cost of fame, and a murder mystery revenge plot. It is far darker and more cynical than standard idol shows.

The star-shaped pupils are a visual representation of "deceptive charisma" or the ability to lie perfectly.

In the series, idols are described as "masters of lies" who sell dreams. The stars symbolize the captivating, almost supernatural aura of those who can perform these lies so well they become indistinguishable from love. They can turn black when a character is consumed by negative emotions or revenge.

The identity of Aqua and Ruby's father is the central mystery driving the plot.

Aqua deduces that their father must be someone in the entertainment industry who knew Ai intimately and leaked her address to the stalker who killed her. His entire acting career is a means to track down this man and exact revenge.

Yes, both series are written by Aka Akasaka.

Oshi no Ko is set in the same universe as Kaguya-sama, taking place several years after the events of that series. There are occasional easter eggs and references, confirming the shared world.

Yes, the 'LoveNow' arc draws parallels to the tragic real-life story of Hana Kimura from Terrace House, highlighting the severe dangers of cyberbullying and the manipulative nature of reality TV editing. It serves as a critique of how the industry fails to protect its talent.

It was the legendary idol group led by Ai Hoshino. After her death, the group disbanded. Years later, Ruby Hoshino revives the name for her new idol group (with Kana Arima and Mem-cho) to carry on her mother's legacy and dream.

For a significant portion of the story, no.

While they both know the other is a reincarnated individual, they are unaware of their specific past identities (Gorou and Sarina). This dramatic irony adds emotional weight to their relationship and individual motivations.

Akane Kurokawa is a genius method actress who becomes a key rival and love interest.

She possesses a terrifying ability to analyze and immerse herself in a role, even perfectly mimicking Ai Hoshino's thought processes. This makes her invaluable to Aqua's investigation, though her involvement brings its own dangers.

The opening theme "Idol" by YOASOBI became a global viral phenomenon.

Based on a short story written by author Aka Akasaka, the song perfectly encapsulates Ai's perspective—the duality of lies and love in the idol industry. It broke records on music charts worldwide, becoming one of the most successful anime songs in history.