Written by Anthony Riach, Room 20 was first conceptualised in early 2015. Shortly after, a strong collaboration between Anthony and Szymon Żmudzki formed the need to tell the story through film. The filming took place in late 2016 with an anticipated release date of 2017. But the very essence of the story was missing, and so it was ultimately decided that the film will not be released. 

It wasn't long before Anthony and Szymon recognised what was missing, and it was things that can only be told and felt through anime. With that, came the new chapter of Room 20.