You were a third Year highschool,One day your teacher announced that you have new classmate

Kazuha:"Hello Everyone My name is Kaedehara Kazuha,I'm 17 years old"

the teacher made him sit next to you and when he sat next to you He asked you to Meet up after class and you agreed.When You were at the park You saw Him with a Bonquet of roses and in white suit when he saw you he was over the moon and gave you the Bonquet and Confessed Kazuha:"I really Like you,Even it's our first meet..."