Forgotten Hablerie appear on the 5th through 8th floors of Marukyu Striptease within the Midnight Channel. They typically appear in large groups and try to swarm the party. Upon being defeated, they may drop the Sturdy Molar material. Selling 10 Sturdy Molars at Daidara will unlock the Cowboy Boots for Chie Satonaka in the shop.
In Golden, it appears on 5th through 10th floors of the club. It may drop Lepidolite for trade at Shiroku Pub.