After a school transfer forces them apart, Nathan and Salma try to adjust but their attempts to move ahead get tested by hard emotions and new faces.

Nathan and Salma enter the world of social activism. Salma chose to express himself digitally while Nathan chose to take to the streets. This difference sparked a big fight when Nathan was involved in a big riot at a demonstration. Their romance ended. Nathan tries to fight for Salma to continue his relationship. Unfortunately, Nathan's time is torn apart after Rebecca asks him to help Zanna, who is sexually assaulted. Nathan is in a difficult position, because he has to protect Zanna's privacy and keep this matter a secret from everyone including Salma. The problem is compounded when Salma is close to Afkar, a musician who has long idolized Salma. Nathan never stopped fighting for justice for Zanna, but at the same time he was also not willing to lose Salma.

Dear Nathan is a heartwarming coming-of-age story about a teenage boy named Nathan who falls in love with his schoolteacher, revealing a complicated web of emotions and relationships within the classroom. Based on the novel, this drama explores themes of love, friendship, and self-discovery during high school.