This time, the opponent is a master of ancient swimming who was forced to isolate himself due to his sharp tongue and extraordinary talent. Battles in the water where you can ignore up and down, and techniques that allow you to swim even if you are tied up, are situations that have been around since the time I thought of this manga! Also, please understand that there may be different interpretations and expressions from the original when translating. Main story R-18, monochrome, It is66 pages including the bonus image including the postscript.