Khun Phaen Begins (2019)

A carefree young thief finds his life turned upside down upon reuniting with his childhood crush. Determined to win her affection, he joins the army to compete with a perfect soldier vying for her love. As he trains rigorously to transform from an underdog to a formidable warrior, he discovers a looming threat to the city from a sinister villain. With newfound resolve, he prepares to confront danger head-on, proving that even the most unlikely hero can rise to the occasion for love and honor.