Akane's sojourn in the remote region of Ryugenzawa leads to her reunion with Shinnosuke, the mysterious boy she remembers from childhood. Only Shinnosuke himself can't remember much of anything, and he's dying of a deadly wound he received in Akane's defense. The only thing keeping him alive is Ryugenzawa's magical water...and now, those natural resources are drying up. With the poor, doomed Shinnosuke on her conscience, will Akane decide to stay with him until the bitter end...?
— Description from Comic Vine community (comicvine.gamespot.com).
