Raincoat Kids — Irodori Comics
Issue: #1
The Splish-Splash CityGuided by a cryptic message scratched on to the bottom of his lantern, Minato takes his little sister Shizu, guided by self-proclaimed bodyguard Toka, to see their father in Tokyo. On the way, they run into a nameless city submerged in water. There, a mysterious specter lurks in the waters, triggering dark memories of Minato's troubled past.
Creators: Yoimachi Meme