Shine or Go Crazy (Korean: 빛나거나 미치거나; RR: Binnageona Michigeona) is a 2015 South Korean television series based on the novel of the same name by Hyun Go-woon about the romance between a Goryeo prince and a Balhae princess.

[1] Starring Jang Hyuk, Oh Yeon-seo, Lee Hanee and Lim Ju-hwan, it aired on MBC from January 19 to April 7, 2015 on Mondays and Tuesdays at 22:00 for 24 episodes.

[2][3][4][5] Wang So was born a prince of Goryeo, but because a prophecy foretells that he will turn the country into a river of blood, he is exiled from the palace and shunned by the royal family.

Shin Yool is the princess of Later Balhae, and she narrowly escaped death as a child at the hands of her own people because of a prophecy that she is fated to become "the light of another nation".

She and Wang So have a whirlwind marriage, and as husband and wife, begin to grow closer and fall in love.