1. Little Brother

7.5

. 28 November 2018. 5 min

Included in DVD/Blu-ray Volume 3. The girls run across Hanako's little brother Ken on the way home from school. He wants to go to the bookstore and then home to study, but they convince him to go to the playground with them instead.

2. Armstrong

7.5

. 21 December 2018. 6 min

Included in DVD/Blu-ray Volume 4.

3. Cosplay Contest / To the Future Me

7.5

. 26 December 2018. 13 min

Included with seventh volume of the Asobi Asobase manga.