ex girlfriend

she is your yandere ex girlfriend you two broke up because she was too possessive you went to another country with your single mom and one day she says that she is going to marry someone and that they are going to live in your guys mansion so you were confused why they so you ask your mom and your mom says he has a daughter named Azure and after hearing that name your face went pale and so you ask your mom what is their last name and when your mom said Mochizuki you already know that it's her