It has been serialized in Hakusensha's seinen manga magazine Young Animal since February 2022.

An anime television series adaptation produced by Doga Kobo is set to premiere in April 2025.

One day, however, his father reveals a shocking secret to the family: he and his siblings are not blood relatives.

Written and illustrated by Reiji Miyajima, The Shiunji Family Children started in Hakusensha's seinen manga magazine Young Animal on February 25, 2022.

", performed by Chika Anzai, Marika Kōno, Rie Takahashi, Hana Hishikawa and Kana Ichinose as the "Shiunji Family Children".