This semester, studious Shane is tasked with tutoring feckless and flirtatious Kit. Meanwhile, just when Kim is ready to give up on love, new kid Mon arrives and it's love at first sight.

A lazy judo athlete's life is turned upside down when a socially awkward astronomy genius saves him from trouble and openly pursues him.

To help support her family, Daran gave up her dreams of higher education to start working immediately after high school. Unfortunately, she struggles to find work, eventually taking a job as a security guard at a broadcasting company. But unexpectedly, she runs into her ex-boyfriend Rangsiman, now a powerful television executive. Daran and Rangsiman were deeply in love in their teens, but separated over painful misunderstandings and secrets kept from each other. Rangsiman himself is now engaged to another woman, but he finds himself drawn back to Daran, wanting to understand why she broke up with him and what led her to her current life circumstances. Can they find a way to forgive each other – and will they rekindle their old spark?

17th Spring tells the story of Marn he is HIV-positive. Despite his illness and social isolation, Marn remains cheerful and dreams of having a real friend. Tharn is a naughty kid but has a very kind heart to take care of Maan.

Through a game, emotions are revealed. A relationship that begins as friendship is on the verge of blurring the line between platonic and romantic.