In 1999, Dan transfers to Saint Lawrence’s, where he faces a shadow in his dreams and unravels the mystery of Trin's disappearance with his new friends.
Rose, a girl who's got a future because she is a good student, good at sports and receives scholarships at Sudruthai School, which is regarded as an old school, has many connections that can make her go to a good school ranking in the future. However, when Rose stepped into this school, she realized that in order to get a good life in this country, money is everything.
Twenty-five-year-old Ko dreams of becoming a teacher. As a child, she was saved by Chaichana, an event that made Ko want to be a good teacher like Chaichana. However, she comes to question what it is to be a good teacher. Ko becomes a teacher as she had hoped, but being a teacher is not easy when she has to face with the education system and the administration of Phatham School.