Ende

Ende was the second Coffin Princess in modern times, and was created from the remains of Sayako Tokiji by Karasawa Shirou. He taught her to speak in computer terms when describing activities such as searching her memories, connecting to the Embryo, etc. At the time of her appearance, she resembles a young adolescent girl around the age of a middle school student. After the battle, it is unknown what became of her. (Source: World Embryo Wikia)