Hifumi Shobo, an Edia subsidiary, announced that cumulative sales of the print and digital editions of "The Time I Joined My Sister's Stream and Was Treated as a VTuber" series had surpassed 200,000 copies. It will also run a campaign commemorating Nova Comics surpassing 200,000 copies.
Edia and Hifumi Shobo announced that cumulative sales of the eligible titles published under Brave Bunko and Nova Comics had surpassed 200,000 copies. The eligible formats are print and digital editions, and the series is titled "The Time I Joined My Sister's Stream and Was Treated as a VTuber."
The novel was published under the Brave Bunko imprint, while the comic was published under the Nova Comics imprint. The series won the Silver Prize at the 3rd Hifumi Shobo Web Novel Awards. Its characters include sisters with VTuber personas, as well as distinctive family members and friends. The novel was written by Enami Kaiji (江波界司), with illustrations by Mizu (みず), while the comic was created by Kaito Ao (海戸あお).
A campaign for the Nova Comics edition will be held to commemorate the series surpassing 200,000 copies. During the campaign, volume reading will be 50% off, the number of free episodes available for episode reading will be increased, and the charge interval will be shortened. The campaign applies to Nova Comics volume and episode reading and runs from 5 October through 11 October 2026.