Kyōsui (鏡水, Kyōsui) is a praised Shinobi hailing from the Land of Water as an exceptional user of Water Release despite his young age. Having been taught underneath the Demonic Siblings for several years now, he is regularly praised by Shūgetsu Hōzuki as History's Strongest Disciple (史上最強の弟, Shijō Saikyō no Deshi) due to the clear level of skill he possesses at his young age. Furthermore, his repute among the brief Hōzuki community he has associated with and compared to Suīduki Hōzuki in particular have lead him to be known as the Angelic Hōzuki (天使気の酸漿, Tenshigi no Hōzuki). As of now, Kyōsui has undergone his formal training in its entirety. There is no more to learn from his own teachers, and now he seeks on his pursuit for more knowledge through his career as a Mercenary Ninja, in hopes