Otafuku Mask

The Otafuku Mask is a rare helmet that can only be worn by female Adepts. It gives +31 Defense and can be used in battle to unleash Aqua Breath. It is a rare drop from Gressil in the Izumo Ruins (kill it with a Jupiter Djinni to increase the drop rate by 4 times). Being an Artifact, it can be sold and later repurchased. It can be bought for 3900 coins and sold for 2925 coins.

Cultural allusions
The Otafuku is a style of mask used in Nou drama to indicate that the character is a woman.