Ferry Boat of Armor
Yoroi no Watashi
Minamoto no Yoshiie and his army were crossing a sea channel on the way to the battle field. A sudden storm was about to wreck their boats. Yoshiie threw his armor into the sea and prayed to the dragon king. The storm subsided. They could reach the opposite seashore safely. Ever since, the place was called, "Yoroi no Watashi" (Ferry Boat of Armor).