Mei Li is a 30 year old woman who has one bad habit of getting drunk at her friend’s weddings. All because weddings seem to remind her of her single, manless, lonely life. One night, Mei Li wakes up in the middle of the night and went up to the roof to drink beer alone, which became a big scandal that led her to meet Lung, a maintainance engineer of the BTS electric train system. Meeting this strange innocent man without being drunk stirs something within Mei Li for the first time in all of her 30 years. Her head is filled with questions like, "What is a guy cool and good looking man like him hiding in a night job working with electric trains?"
Mei Li feels as if Lung is a treasure that she stumbled upon. She felt like she won the lottery. If she does not do something and follow her heart, she might be the last living single woman in all of Bangkok. Mei Li decides to do something that every girl has thought about but never dares to do. Pursue a man.