The Secret of the Blue Sea
Ai Li'er, a mysterious jellyfish, unexpectedly shares her heart with coffee shop owner Zhou Qiusheng. As Zhou Qiusheng and his friend, Chen Qingfeng, search for answers, Zhou Qiusheng’s ex-girlfriend, Lin Shuangshuang, struggles with the situation, while the truth behind Ai Li'er’s identity remains unclear.
Below are the streaming services currently carrying the TV show “The Secret of the Blue Sea” in the United Kingdom, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in the United Kingdom can differ from other countries.
Where to watch The Secret of the Blue Sea in United Kingdom
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Not currently available on the supported providers in United Kingdom.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 16 Sept 2026.