When Mary discovers another "Mary" living inside her, the one responsible for killing Maria's father Yusei, Maria begins to try to contact this other "Mary" unsuccessfully. Meanwhile, Maria is visited by a mysterious man who has information about how Maria's mother met Yusei in the first place.
General Note
Printed Manga-style; book opens from left to right. Pages are read from right to left.
"First published in Japan in 2015 by Kadokawa Corporation, Tokyo"--Copyright page.