This mace is Kotetsu's tool that he usually stores in a scroll and summons in battle when necessary. It resembles a conch shell with numerous sharp protrusions all over its surface and a marking in the centre that resembles an eye. Its hilt is wrapped in bandages, and a chain connects the mace to the base of the hilt. Kotetsu uses it in combination with Izumo's Water Release: Starch Syrup Capturing Field, making it easier to deal a devastating blow after the target is immobilised.
