Overview
{{Infobox animanga/Print
| type = manga
| author = Ghost Mikawa
| illustrator = Yumika Kanade
| publisher = Kadokawa Shoten
| publisher_en =
| demographic = Shōnen
| magazine = Shōnen Ace Plus
| first = July 16, 2021
| last =
| volumes = 3
| volume_list =
}}
is a Japanese mixed-media project created by Ghost Mikawa. It started with a YouTube channel created in April 2020, with its first video uploaded on May 1, 2020. A light novel series is written by Ghost Mikawa and illustrated by Hiten. The series began publication by Media Factory under their MF Bunko J imprint in January 2021. A manga adaptation by Yumika Kanade began serialization online in Kadokawa Shoten's Shōnen Ace Plus in July 2021. An anime television series adaptation produced by Studio Deen is set to premiere in 2024.
Premise
After his father's remarriage, Yūta Asamura finds himself getting a new step-sister Saki Ayase, who happens to be the number one beauty of her grade, and lives together with her. Having learned the important values about man-woman relationships, seen through their parents, and in order to not cause discord in the family, Yūta and Saki promise to keep a reasonable distance from each other, not to be too close or too opposing. Saki, who is longing for affection from her family and worked in solitude for their sake, does not know how to depend on others, while Yūta is bewildered at how to properly connect to Saki as her older brother. Feeling somewhat similar, the two of them gradually feel comfortable living together.
Characters
From Wikipedia (CC BY-SA 4.0).