Titaniva Mu Koshigaya ティータ・ミュウ・越ヶ谷

The chief heroine of Plastic Little, Titaniva Mu Koshigaya (or Tita to her friends) is the captain of the Cha-Cha Maru, a petshop hunter ship she inherited from her father. A tomboy at heart, whenever she gets time away from the gas ocean, Tita often enjoys riding on her jetcycle. However, Tita would prefer to cruise the gas ocean. Although it is apparent her father is dead, Tita still believes that a part of him still lives or that he may be still alive. Source: Wikipedia