It starts with the perverted old Grandfather deciding that he will arrange a marriage between his preteen Grandson and his little best friend, not the best start.
His daughter and son in law don't seem to mind and the poor friends were happy to sell their preteen son into some kind of prostitution, they were rich by the end so it worked out for them.
We then jump into the future, the children have grown and are dating, Kuea ( pervert Grandfather) is now 20 yo and mentally challenged. He lives a secret life of motorcycles and club singing while being a cutie pie innocent boy for his boyfriend Lian.
Lian knows about Kuea's secret life and wants him to come out, so he tells him he doesn't love him ( Maybe that made sense to the writer but not to me ).
Kuea cries and calls of the relationship and this is where it could have got interesting, instead it just plodded along with Lian the manipulator lying all the time and Kuea the mentally challenged lying all the time.
Every episode we get Kuea saying he his going to be strong and independent but then acting like a battered wife, Lian just played along while talking to Kuea like a 5yo child and manipulating him at every opportunity.
They finally sort everything out and start dating ( never any explanation on why Lian told him he didn't love him at the beginning ) , Lian even asked Kuea if he had been drinking before they had sex.
In this Thai BL they decide they didn't want to drunk rape anyone, shocking I know, but they didn't mind Lian having sex with someone with the mental capacity of a goldfish.
Kuea finally grew a spine and a brain ( not for long ) and dumps Lian at the most inconvenient time, only to get back with him a hour later, THE END.

I think the drama would have been better if Lian had not known that Kuea had a secret life and was acting innocent, he then tells him he doesn't love him and Kuea calls of the relationship.
Keau is heartbroken because he as been trying to please Lian by being cutie pie and all innocent. Jump a few months and Kuea as moved on and is being his real self.
Lian could have then fell in love with the real Keau and the story would have ended happy with a moral twist about loving yourself and being honest in a relationship.