Dive into the post-apocalyptic water world of Raincoat Kids with constant rain, submerged cities, and a cryptic messaged found at the bottom of a firefly lantern. In this traditionally illustrated word by Yoimachi Meme, follow Minato Aikawa as he takes his younger sistter through the dangerous world to meet with their father. At their side they have self-proclaimed bodyguard Toka and his "ultimate weapon" that seems to be just an umbrella. Will they drown in the murky waters or find their ...

From the author of Raincoat Kids comes another supernatural mystery! Tadashi Endou has gone through a traumatic experience that's forced him to become a shut in. With walls lined end-to-end with mysterious photographs he cannot remember taking, the only person he really sees is his classmate Sumida, who shows up every day with class printouts. But as the mysteries behind Endou's life start to reach a breaking point, he learns that Sumida isn't an actual person in his class! What else will ...

After finally walking down the mysterious alleyway, Endou appears in a riverbed city known as Kawazoko, where luminous fish float in the night sky. Sumida warns Endou that he should leave before the night of the Lantern Festival but this fabled city of wonder could have the answers to his missing father!

On the even 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.

When Kosaburou and Samegai, the mysterious conductor of the Black Train, finally locate Hotori, she appears to have somehow reunited with the human Endou. But Hotori herself senses that something about Endou is different from before. Kosaburou will have to confront shadows from his own past in order to help Hotori escape from her memories in the conclusion of this two-part arc in the Riverbed Projector saga.

With Endou safely returned to the real world, Sumida (or Hotori, as those in Kawazoko know her) goes back to her old double life of school in the real world and strange happenings in the otherworld, with no humans she meets -- including Endou, now -- ever able to really remember her. Her brother hears her often talking to someone on the phone, but who could she be talking to? He confronts Hotori, but perhaps not in time to avert disaster. Something in the past of the Sumidagawa family is a...