Wonderful Gocche

The Leader is boastful, theatrical, cowardly, and completely committed to the Jiggle Butt Gang's absurd criminal identity. He presents the trio as dangerous professional thieves despite their repeated failures and tendency to be overwhelmed by far more competent mages.

He is particularly enthusiastic about the gang's secret techniques and their shared obsession with using their oversized posteriors as weapons.

The character's comedic role means his confidence regularly collapses once Fairy Tail retaliates seriously.

The Leader shares the Jiggle Butt Gang's Secret Jiggle Butt Art, which uses pressurized gas released from the trio's posteriors as an offensive weapon.

Gas-Butt Triple Ecstasy requires the three thieves to arrange themselves in a triangle and release a concentrated gas cloud powerful enough to damage the interior of a train.

Gas-Butt Triple Ecstasy Fire Special adds ignition by creating friction before releasing the gas, producing a fiery variant.

Point Blank Ecstasy can be performed by one member at extremely close range, directing the attack into an opponent's face.

The Jiggle Butt Gang first encounters Natsu Dragneel, Lucy Heartfilia, Gray Fullbuster, Erza Scarlet, Wendy Marvell, and their companions while attempting to steal gold from a freight train.

The trio briefly convinces Wendy to participate with them, treating her as their "goddess," before their robbery collapses in the face of Fairy Tail's intervention.

They later reappear during the search for the Infinity Clock, attempting to steal a clock component discovered in the Library of Magic.

Their interference again ends badly, particularly after they damage something Erza cares about and provoke her anger.

Wendy Marvell temporarily becomes associated with the Jiggle Butt Gang after the trio enthusiastically recruits her as their "goddess."

Natsu Dragneel confronts the gang during the freight-train robbery.

Erza Scarlet later becomes one of the gang's most dangerous opponents during the Infinity Clock search.

Lucy Heartfilia and Gray Fullbuster are among the Fairy Tail members repeatedly drawn into the gang's schemes.

Karen Berg is the database name corresponding to the gang's taller subordinate, identified within Fairy Tail itself simply as Lackey A.