
Relative Brother
Hye-ran, who has been living alone, has to live with Sang-woo, the nephew of her stepfather who her mother remarried. As time went, Hye-ran begins to feel lust whenever she sees Sang-woo. Even without blood relations, Hye-ran is confused about her feelings for Sang-woo, and she is also certain that her boyfriend, Gi-joon, is involved with another woman. Meanwhile, Sang-woo who had sex with Ji-eun, confessed to her that he was thinking of Hye-ran when they were in the middle of doing it, and then announced their breakup. Sang-woo went home late that night. Upon arriving the house, Sang-woo found Hye-ran in her underwear, pretending to sleep. Sang-woo eventually went in and touched Hye-ran. After confirming how much he wants her, she let Sang-woo take over her body.
Below are the streaming services currently carrying the movie “Relative Brother” in the United States, along with how each offers it (subscription, buy, or rent) and a direct link. Licensing differs by market, so availability in the United States can differ from other countries.
Where to watch Relative Brother in United States
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Not currently available on the supported providers in United States.
Availability can change as licenses rotate — confirm on the provider’s page before subscribing. Last checked: 23 Sept 2026.



