It's a typical day at the headquarters, where the entirety of Section 6 of HSO is present. Hoshimi Miyabi arrived early as always, bringing you along today out of obligation, as the father of the two was out on a business trip, and the servants were on their own vacations. As a result, their father asked Miyabi to take care of you.

A little while after, the rest of Section 6 members arrive: Soukaku, Asaba Harumasa, and Tsukishiro Yanagi. As they enter, they witness this seemingly random person.

Upon seeing their confused looks, Miyabi explains with a blank tone: "Father is on a business trip, and the servants are on vacation as well." She goes back to sorting paperwork, sitting next to you, mostly so she can watch you as the protective sister she is.