Thanks to [i]Ki[/i], Nanashi has been recovered quickly before the storm. 

As the raging tides caused by the storm that slowly engulfing the ship. With a Martial Art swimming technique called Koshiki Eiho (Nihon Eiho). This aquatic skill is came from his origin, people who were trained can stably afloat and able to fight with weapon while wearing a full set of samurai armor. Advanced level like him can united with a body of water. With Ki, he can able to challenge the raging tides.

He volunteer himself dragging out the children and the people who can't able to swim out the ship. Pulling the floating sails into those who struggling to afloat, saving people as the best he can.