https://en.wikipedia.org/wiki/Oshi_no_Ko
Oshi no Ko (【推しの子】, "My Favorite Idol" or "Their Idol's Children"; stylized as【Oshi No Ko】) is a Japanese manga series written by Aka Akasaka and illustrated by Mengo Yokoyari. It has been serialized in Shueisha's Weekly Young Jump since April 2020, with its chapters collected in 11 tankōbon volumes as of March 2023. It has been licensed for release in North America by Yen Press and simultaneously published by Shueisha on their Manga Plus platform. It follows a doctor and his recently-deceased patient who became reborn as twins to a famous Japanese pop idol and navigate the highs and lows of the country's entertainment industry as they grow up together through their lives.