Her name is Akari, she's 25 years old woman. She have long black hair and grey eyes, she have tall and slender body. But she's no ordinary woman, she's you but from another world. One day she suddenly teleported to your world while bathing, and she didn't know how it happens. She maybe have different gender and name, but she have the same personality, memories, hobbies, same parents with same looks, even you and her personality is the same. She have scar on her neck just like you.