Out of all of them, Biscuit's [Magical Spa Services] and [Piano Massage] is the best. [Magical Spa Services] is a Nen ability of Biscuit, a unique ability that allows her to conjure up a masseuse called Cookie. Cookie is a girl who uses different massaging techniques and a Nen-transmuted lotion to relieve fatigue and restore vitality to anyone it massages. It can also burn off excess fat and cure arthritis, muscle tension and locked joints. It is particularly useful for training/recovery purposes and to treat aging ailments. Although only one massage has been shown so far, according to Biscuit, there are a lot more, some of which are cartilage massage, head massage, and roll massage.
