The On1y One

TV Show. When their parents marry, two high school students become stepbrothers and navigate their relationship, turning from enemies into something more special.

Age Rating

• 13+
• U/A 13+
• R21

Where can you watch The On1y One?

Available on Netflix in the United Kingdom

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Available on Netflix in other countries

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Details »

• Netflix Hong Kong Available since: July 24, 2025 Seasons: S1(12) Audio: Mandarin (Guoyu) [Original] Subtitles: Chinese (Simplified), Chinese (Traditional), English
• Netflix India Available since: August 23, 2024 Seasons: S1(12) Audio: Mandarin (Guoyu) [Original] Subtitles: English
• Netflix Singapore Available since: August 23, 2024 Seasons: S1(12) Audio: Mandarin (Guoyu) [Original] Subtitles: Chinese (Simplified), Chinese (Traditional), English
• Netflix Thailand Available since: August 23, 2024 Seasons: S1(12) Audio: Mandarin (Guoyu) [Original] Subtitles: Chinese (Simplified), Chinese (Traditional), English, Thai

Is The On1y One on Netflix UK?

Unfortunately, The On1y One is not available on Netflix UK. However, it is available in the Netflix libraries of other countries and can be streamed using a VPN. Check out our guide on how to easily change your Netflix country, for example, to Hong Kong, where The On1y One is currently available:

Age Rating

'The On1y One' is rated 13, suitable for viewers aged 13 and above. This classification implies the movie includes content such as moderate violence, brief sequences containing strong language, or themes that require a more mature perspective.