Three young boys, who were high school friends, lost contact with each other after graduation. Four years later, they meet each other coincidentally. Although they've grown up and changed, conflicts are occurring between them.
Kinn, seeking solace in Northern Thailand, loses his phone and travel plans due to his playful friends Namjai and Tib, leading him to connect with Thitnuea, a local guide with deep roots in the region.
In the summer of 2019, Chen Zihao discovers his class's top student, Yang Yuhang, is his secret pen pal. Their connection deepens, but looming exams test their newfound closeness.
Two college roommates, now facing quarter-life struggles, navigate the unspoken depths of their chemistry. A bold attempt by one risks unsettling their bond.