Sasaki to Miyano: Koi ni Kizuku Mae no Chottoshita Hanashi.

佐々木と宮野 恋に気づく前のちょっとした話。

Unaired episode bundled with the ninth volume of the manga. The episode will follow the disciplinary committee as they form "The First Lost Property Detective Team" and set out to search for a student's missing keychain. (Source: Crunchyroll, edited)