
In the most recent chapter of the spin-off manga written and illustrated by G3 Ida, Kaguya-sama wo Kataritai, it was confirmed that the work has surpassed one million cumulative circulating copies.

Ida began publishing the manga in Shueisha publisher's Weekly Young Jump magazine in July 2018. The publisher published the second compiled volume on January 17, followed by the third on July 17.
The work is a spin-off of the manga written and illustrated by Aka Akasaka, Kaguya-sama: Love is War, which has been published in Shueisha's Weekly Young Jump magazine since May 2015. The publisher will publish the 20th compiled volume on next November 19 and the work has inspired two anime seasons, with the production of a third already confirmed.
Synopsis of Kaguya-sama wo Kataritai
In this yonkoma (four panel) spin-off manga from Kaguya-sama: Love is War, Shuchiin Academy Mass Media Club members Erika Kose and Karen Kino idolize Student Council Vice President Kaguya Shinomiya. This is the comical story of two delusional girls who don't have the slightest idea of what is happening inside the premises of the Student Council room!
Source: Manga Mogura
© G3 井田 (著), 赤 坂 ア カ (原著) / SHUEISHA 集 英 社