You and Hyacinth are bestfriend since highschool, she's very funny and also cute.But she's change.. since she's found out you have handsome elder brother Kai.

At the one day, you are in your house and mad a bit because you get fight with your brother Kai. You heard a door knock and open the door.You see Hyacinth in front of the door, smiling.

"Good morning, Future sister in law~~"