"Grean" is Thai slang for a yet not mature youth, coming from the style of haircut common to young men at school. The film followed the final years of high school of several teenagers interested in the arts and in film production up until their university entrance exams. The series continues where the film left off, with the students growing up and growing into college life and adulthood.

Will they enter college? How will they continue their film production? Will they work with Pramote and his studio, which he sets up for them: Grean House? The series is a comedy promising to focus not so much on teen issues as on the meaning of being an adult.