Deep Blue Girl is an exciting visual novel in which you have unfortunately met with your demise in a strange way. Your memory is lost and you are rescued by a mysterious girl with blue hair. Together, you must piece back together your former conscious self in an attempt to bring you back to life. Deep Blue Girl features a lovely romance-driven storyline and high quality erotic content. You can customize the mysterious girl with several customizations and unlock additional items as the game progresses. You can also unlock several H scenes and replay them as much as you wish. Your choices will influence the ending, with both good and bad endings. Your relationship with the mysterious girl will also affect the outcome of how the game is played. Deep Blue Girl also features three interface languages: English, Japanese, and Korean for the project's main audience.