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Atom borrows an eraser from Mudmee, his girl classmate whom he has a crush on, and finds that she has secretly written the name of Kongthap. Kongthap sees the eraser with his name on it in Atom's hand and mistakenly thinks that Atom has a secret crush on him. In order to keep Mudmee's secret, Atom remains silent.

Atom's class is preparing for a stage play. Mudmee is forced to be the main actress, and Kongthap is assigned to be the main actor. On the day of the performance, Mudmee gets stage fright. Atom steps in and performs the play together with Kongthap.

Kongthap visits Atom because Atom is feeling unwell. He acts as a model for Atom's art project. They finish the project at night. Atom then asks Kongthap to stay over.

The basketball team goes to Kongthap's old school for a friendly game. Atom thinks Clair has a secret crush on Kongthap, so he tries to stop them from competing against each other. However, it turns out to be a misunderstanding.

Atom and his classmates are going on a training camp. He asks nature deities to grant his wishes and confesses his feelings to Kongthap.

Annop tells Atom that he should ask Kongthap out on a date. He goes to the movies with Kongthap. After the movie, they finally hold hands.

Atom is concerned that Annop will discover his relationship with Kongthap. Annop continues to counsel Atom, and Atom finally understands. He goes to find Kongthap. The two share their feelings and officially establish their relationship.

Atom and Kongthap both wonder and anticipate their first kiss as boyfriends.

Atom wants to buy a gift for Kongthap's birthday, but he has no money.

Kongthap and Atom visit Bangkok to tour potential universities to apply to.

Kongthap and Atom enjoy the school fair while they contemplate their future plans.

Atom and Kongthap open up to their moms about their relationship. Together, they discover where their future will take them after high school.