On the eve of the of the lantern festival, a distraught Sumida stumbles through the dark alleyways of Kawazoko searching for Endou. With only a bottle of ramune and a mind full of questions, there's a whole world of mysteries to solve! Finally the curiousities of Kawazoko are brought to life in the concluison arc for the first part of the Riverbed Projector series.
- Artist: Yoimachi Meme
- Pages: 40
- Japanese Title: 川底幻燈３
- Romaji Title: KAWAZOKO GENTOU 3