Torpedo Girl is a powerful, unpredictable force not even Bo-bobo and his hajikelists quite understand when she first appears. Compared to her "other half" OVER, she is a living female torpedo with human arms and legs. Furthermore, compared to the patient anger held by the human form, she gets ticked off by even the slightest of comments, immediately responding by making her bomb-like body fly towards her opponent and smashing into them with intense force! Unlike Over, she is actually 28 years old. It is unknown why she is 28 and Over is three years younger. Part of the reason behind Torpedo Girl's immense anger and frustration stems from her position as a Legendary Idiot Killer, a legendary group of warriors who attacked and killed anyone and everyone that made even the smallest of jokes or performance of foolish action. Whenever she even senses or sees something silly or ridiculous, her immediate action is to attack the fooler with full force. Although she sees herself as vital to the protection of the sanity of the world, Torpedo Girl is considered a nightmare to anyone with hajike abilities such as Bo-bobo, Don Patch or Jelly Jiggler.