She is Megurine Luka. CV03. Dolphine Assault - Luka rides a dolphin that can swin in air, knocking back anyone in her way. Ink splash - Luka can explode an ink sac, blinding anyone. Ultimate: Night Fever - Luka transforms the arena into a stage, which enhances her strongly and summons Tako Luka to heal her and distract 相手. Luka can also fight with her weapon, distract, dodge, and block freely.