it's not a side story, the author probably meant the fact they did a volume 2. that or they were talking about that last extra (6.5). i don't think they're planning a spin off of this manga.
it's not a side story, the author probably meant the fact they did a volume 2. that or they were talking about that last extra (6.5). i don't think they're planning a spin off of this manga. cinnamoroll
can someone link me to the sequel the author was talking about ? seems like iwashizumi is in it (?)