Persistent Fuzz appears on the 3rd and 4th floors of Marukyu Striptease within the Midnight Channel. It will generally accompany other shadows to prevent the party from using multi-target elemental spells due to its ability to repel them. Upon being defeated, it may drop the Tanned Hide material. Selling 4 Tanned Hide at Daidara will unlock the Wolf Tunic female armor for sale in the shop.
In Golden, Persistent Fuzz also drops Fluorite for trade at Shiroku Pub.