Season 1 of The Five Brothers premiered on March 15, 2013.

Khunchai Taratorn...the cautious archeologist dealing with love that he must choose. He is the eldest that looks after his brothers after their parents have passed away. He has the pressure of his promised fiance from another family on his shoulders. He is very focused when it comes to studying historic sites, yet not knowing that this time he will also discover his own heart too. This is a story between two people who has fond feeling for one another ever since when they were children. Love will appear in the middle of an antiques robbery in which it was when those two get a chance to prove their heart.

Season 2 of The Five Brothers premiered on April 5, 2013.

Khunchai Pawornruj...a young government employee working in the Ministry of Foreign Affairs with a bright future and love that one could only dream of. He's the second eldest that escaped his fate of marrying a royal woman only because his own mother was just a concubine(?) in the palace. As luck would have it, he meets his true love while traveling to Switzerland for work. Amidst their romance, the couple will endure a blizzard on top of a mountain and other emotional storms from reality. Will those two make it pass all the obstacles?

Season 3 of The Five Brothers premiered on May 3, 2013.

Khunchai Puttipat...a young doctor with his love without any distinction. His mother was the daughter of a rich Chinese merchant. The handsome doctor must forget all the rules that he had followed his entire life when he met a commoner woman who holds the title of "Miss Sri Siam." He uses his own heart and decides to rescue her from becoming a powerful General's concubine. Thus, it was led to a fake marriage where the two will hide their hearts simply because neither understand the feelings. But in the end, this young noble will discover that this commoner girl is more precious than any diamonds and gems in the world.

Season 4 of The Five Brothers premiered on May 24, 2013.

Khunchai Ratchanon...a young engineer that believes in controlling his own destiny. He has the same mother as khunchai Puttipat. When he went to Isaan to oversees a construction he met a female forest dweller. Their love proceeds in the midst of prejudice, jealousy, and envy from the people around them. But in the end, this forest dweller is actually the princess of the neighboring country. And khunchai Patchanon plays an important part in his love's, the princess, return to her rightful throne.

Season 5 of The Five Brothers premiered on June 15, 2013.

Khunchai Ronnapee...the daring pilot of the Royal Air Force with love that transcends customs. The youngest of the five, khunchai Taratorn's younger brother. His mother is the First Wife. Who could believe that this noble pilot will meet a female celebrity? It was like a dream! She fell right into his arms during an accident on a film set. These two will break the traditions, and go through the barrier of nobility so that everyone will be certain than she is a dancer who loves him as another common pilot, not because of his nobility bloodline.