Love is outside the person (1-3 volumes)

Publisher: Hakusensha
Author: Minami Maki
Size: 112mm x 174mm
Number of books: 3
Language: Japanese
Category: Girl manga, manga
Latest publication date: 2016-10-20

Synopsis:
Ten years ago, Tsumo Saya made a promise with a boy. "I will always call your name to meet you again." One day, a large dog monster suddenly appears before the night, when he completely forgot his promise. A monster telling the confused Saya, "Call my name as soon as possible." It was the boy "Yang" at that time when he came to the human world to fulfill his promise. Is he an ideal prince, or ───!?