Prologue

After seven years, the lovers meet again, you owe me a profession.
Missing each other due to misunderstanding in high school, the two of them returned to teach at their alma mater after graduating from college. After seven years, Bright Vachirawit Chivaree didn't recognize that he was the young boy Win Metawin. Now one of them is a gentle yet scheming Math teacher, and the other is an unromantic and poker-faced physical teacher. When they again meet each other, the things are still there, but the other men are no more same ones, can they restart their relationship? And the secret of high school is gradually being disclosed...