The kendo club of Seijou Girls' Academy embarked on a summer training camp to Shoushinji, a place steeped in legend about Urashima, a mystical island. The tales spoke of oni and the Onikiribe, who were known to exterminate anyone trespassing on the island. These ancient fables came to life when Osanai Syouko, the captain, and Aizawa Yasumi, the manager, chanced upon a stunning and enigmatic girl stranded on the shore. It is important to note that this manga is officially adapted from the PS2 game Aoi Shiro, which is closely intertwined with Akai Ito.
