​"Two worlds. One bite. A revolution written in blood and starlight." In a world fractured between the blinding, sterile tyranny of the High Heavens and the gritty, lawless depths of the Low-City, balance is a myth. When Phuwin, a high-ranking angel, falls into the lawless Low-City, he becomes the ultimate prize for the pits' most dangerous predator: Pond. ​Tied together by the Eclipse Bond-a parasitic connection that shares both pain and pleasure-the two must survive a war between Heaven and Hell. As the bond deepens from a curse into a dark, possessive obsession, they stop fighting the link and start using it to seize a throne. ​"He was a divine sacrifice. Now, he is the King's most precious secret."

​"They say the sky is limitless, but for us, it was the very thing that kept us apart." ​In the humid, salt-stained halls of a small school in Krabi, Phuwin is the undisputed heartbeat. To the world, he is the ultimate extrovert-the guy whose laughter fills the corridors and whose future is as polished as the pilot's uniform his family has already picked out for him. But behind the bright smiles and the "Main Ten" social circle, Phuwin is drowning under the weight of an anchor: a family legacy that demands perfection and forbids his truth. ​Ray is the only one who sees the cracks in the mask. ​Positioned in the shadows of the back row, Ray is the village "bad boy"-an ambivert with a lethal stare and a reputation for violence. To the world, he is cold and unreachable. But behind the moodiness lies a heart softened by a house full of siblings and a secret devotion that has burned for four years. He doesn't want Phuwin's mask; he wants the boy shivering underneath it. ​What starts as a classroom joke-a "dream" of a romance-spirals into a toxic, beautiful, and devastating reality. From blood-stained desks and secret kisses under rotting piers to the chemical haze of betrayal and the sharp sting of a razor's edge, their love is a storm that threatens to destroy everything in its path. ​Vows in the Vapor is a story of three jagged marks on a wrist, the scent of jasmine perfume that tastes like a lie, and the quiet, citrus-scented healing of a man named Pond who finally teaches a broken boy how to fly.

A secret prince and a billionaire's rebellious son must navigate a forced marriage and a deadly campus rivalry, only to realize that the person they hate most is the only one who can save them from their families' dark secrets.