Chai Muangsingh

A magical book is being sought by a group of bad guys who aim to misuse its power. Yod is assigned to protect the magical book without realizing that a Hanuman tattoo that he got since he was young is the most powerful weapon to defeat the bad guys.

The story of the lives of many people who share the same goal is a Luk Thung Singing Contest, winning a prize of 1 million baht by a kind uncle who has a desire to see a gathering of luk thung lovers in the pre-final period of his life.