11 minute OVA bundled with the limited edition of volume 7 of the light novel.

Feeling they don't have much to do today, Kodaka suggests everyone participate in a novel relay, in which everyone takes turns writing out a novel with Kodaka as the protagonist. Naturally, things don't go very well as each member's contribution leads to the story becoming weirder and weirder.

Video Commentary for Episode 12 of the second season with the English Voice Actors

Audio Drama with uncut audio from the Roller Coaster Ride.