Where to watch?
Dramaflix is the better dealPay $7.99 less per month with Dramaflix: the short series of 45+ platforms, including ShortWave, in one plan.Save $7.99 a month
Plot
Independent illustrator Chloe, forced to pay off her seriously ill father's debts, signed a one-year fake marriage contract with cold Wall Street tycoon heir Alexander. Expecting a cold transaction, she discovered that this "ruthless tyrant" was actually an extremely overprotective "wife-doting maniac." Faced with the snobbish ex-boyfriend and insufferable relatives, Alexander used absolute wealth and power to publicly defend his wife, ruthlessly slapping down the villains. During their sweet cohabitation, every scheming green-tea rival who showed her face was instantly and mercilessly crushed by the male lead. When the contract expired, Alexander tore it up and confessed with red-rimmed eyes. Chloe, in turn, healed his emotional wounds with love, and their fake arrangement turned real — a love that ran both ways.
Frequently Asked Questions
Where can I watch The Billionaire's Secret Vow?
The Billionaire's Secret Vow streams in English on Dramaflix; its source platform is ShortWave. A Dramaflix subscription covers every short series from 45+ platforms.
How much does it cost to watch The Billionaire's Secret Vow?
On Dramaflix, The Billionaire's Secret Vow is included in a single $12/month plan that covers all short series from 45+ platforms. Watching it on ShortWave alone costs $19.99 a month — Dramaflix is $7.99 cheaper per month.
Is The Billionaire's Secret Vow on Dramaflix?
Yes, The Billionaire's Secret Vow is in the Dramaflix catalog with all episodes available in English.
How many episodes does The Billionaire's Secret Vow have?
The Billionaire's Secret Vow is a short (vertical) mini series with 40 episodes in total.
What genre is The Billionaire's Secret Vow?
The Billionaire's Secret Vow is a sweet romance short drama (Sweet Romance, Urban, Romance, Marriage).
Is The Billionaire's Secret Vow dubbed or subtitled in English?
The Billionaire's Secret Vow is available on Dramaflix with English dubbing and/or English subtitles.
What is The Billionaire's Secret Vow about?
Independent illustrator Chloe, forced to pay off her seriously ill father's debts, signed a one-year fake marriage contract with cold Wall Street tycoon heir Alexander. Expecting a cold transaction, she discovered that this "ruthless tyrant" was actually an extremely overprotective "wife-doting m…
Streaming info last updated: October 9, 2026
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