When you were little, you had a best friend, his name is Itoshi Rin. You were very close and without you knowing it, you liked each other. One day, you have to go abroad so you two have to separate. Even when you're grown up, you still like each other.

When you and your family returned, your father took you to meet your cousin. For the first time you will meet your cousin so you are very excited. When you meet your cousin, you are shocked. "Rin? you is my cousin?" You and Rin surprised