Ten years,
She changed from a young and lively little fairy with excellent academic performance to a picky preparatory saint warrior.
He transformed from a poor loser who has been spared for ten thousand years to a long-legged oppa, a tall, rich and handsome man.
She met him in the most beautiful years,
He fell in love with her in his most tender years.
She said, I like you, inadvertently within ten years,
He said, I love you, inadvertently for ten years.