Ep. 11: The group organizes a doujinshi sale to promote Hagane Orchestra
Aired on December 19, 2016

The group initiates a sale of doujinshi materials. This activity raises questions regarding its connection to the promotion of Hagane Orchestra. The narrative explores the relationship between the merchandise event and the band's advertising efforts.
Episodes
- Ep. 7 · Chris and Nanaka spend time together in the hangar area
- Ep. 8 · Yukari and Maki Visit Irodori to Find Easy Advertising for Hagane Orchestra
- Ep. 9 · The group discusses strategies to attract more male gamers to their circle
- Ep. 10 · The Hagane Academy Concert Band prepares for the National competition amid internal drama.
- Ep. 11 · The group organizes a doujinshi sale to promote Hagane Orchestra
- Ep. 12 · Hagane Orchestra narrative involving boys, girls, mechs, friendship, and rivalry.