The film opens with Tee narrating about the YouTube videos he and his friends make under the banner of "Grean Fictions," which have become a local hit at their Chiang Mai school. He explains that he's writing a story about the lives of him and his friends, a mirror of their real high school days.
At matthayom 4, Tee and his classmates—Oat, Mon, and Mone—are invited to join the school drama club. Tee lands the male lead opposite the popular Ploydao, a moment that should be dazzling but ends in embarrassment when he inadvertently upstages her in front of the audience. The incident strains their budding relationship and shakes Ploydao’s confidence. Their club advisor, Daengtoi, responds by expelling Tee from the group, a blow that also complicates Tee’s home life, as he learns that his elder sister, Tip, who he lives with, is dating a man named Ket. Tee’s resentment about Tip’s relationship adds another layer of tension to his already turbulent year.
By matthayom 5, the mood shifts as Tee and his friends transfer to the film club under a new advisor, Saneh. The group earns recognition for a short film they produce, but the lingering memory of the previous year’s drama continues to haunt Ploydao. A senior student asks Tee to participate in another play—this time without Ploydao’s knowledge—so she can confront her embarrassment head-on. Yet on the night of the performance, Tip experiences a mental breakdown and harms herself, forcing Tee to abandon the production and rush home to be with her. Ket arrives to support Tip, and Oat ends up stepping in for Tee.
In their final school year, the drama club and the film club collaborate on a joint project. During a filming trip, the students play a truth-or-dare variant that unsettles Tee, who still hides a crush from his friends. Ploydao reveals that she and Oat have been secretly dating, a revelation that stings Tee and pushes him to leave in the middle of the night. A friend visits Tee’s house to coax him back, but Tip interrupts the confrontation, and an argument erupts, prompting Tip to demand that he leave.
Tee makes a decisive escape to Pattaya, taking a train away from home with little money and no phone. There, he befriends Mone, a stripper who has recently run into trouble with a gangster. They join a local comedy act and Tee gradually finds a sense of belonging he hadn’t felt before. For weeks, he avoids contacting his old friends, until he uploads a video to the old channel, assuring them he’s all right. When his friends learn where he is, they decide to come to Pattaya to locate him, with Ket also persuading Tip to join the search.
In Pattaya, Mone leaves abruptly after taking Tee’s money, but the group leader reminds Tee that life moves on and people part ways. When Tip and Ket finally locate Tee, Tip apologizes, and Tee asks Ket to marry Tip on the spot. Ket agrees, but then hesitates and leaves at the last moment. The next morning, Tee and Tip ride home by train, and along the journey they share a candid conversation that reveals Tip’s true relationship to Tee: Tip is actually Tee’s mother. Ket calls to apologize, and Tip eventually meets him at Lampang Station. Tee then phoned his scattered friends, who remain stranded far from Pattaya, and they vow to come pick him up. The film closes with Tee reflecting that the future remains uncertain, but the story he writes will carry the best hopes and wishes of all of them.
