A lone knight who for many years served House Tersia, on the eastern edge of the continent. Now old and weak, he saw that it would not be long before he left this world. And so he retired from his master's service, gave up his fortune and set off on a jo

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"Water manipulation"—the supernatural ability developed by mankind in the 22nd century that made it possible to traverse the ocean depths. Minato Yamajo returned to his old academy as an instructor to teach aspiring water manipulator trainees and ended u