Is My Cousin's Sister Worth Watching?
Answer: Maybe not, My Cousin's Sister is likely a skip if you enjoy Romance movies.
It features a runtime of 70 minutes and offers a standard storyline that appeals to general audiences.
Verdict:My Cousin's Sister is a confirmed FLOP based on our analysis of audience ratings and box office momentum.
With a rating of 4.0/10, it has delivered a mixed experience for fans of the Romance, Drama genre.
Answer: Maybe not, My Cousin's Sister is likely a skip if you enjoy Romance movies.
It features a runtime of 70 minutes and offers a standard storyline that appeals to general audiences.
Last updated: January 10, 2026
Released in 2018, My Cousin's Sister enters the Romance genre with a narrative focused on Yasuo, who stayed in the house of his father, Tase, who had been friends with his uncle. Under the direction of Kang Jeong-hoon, the film attempts to weave detailed character arcs with visual storytelling.
The film is anchored by performances from Erika Nishimori, Yu Shinoda. While the cast delivers competent performances, the script occasionally limits their range.
From a technical standpoint, My Cousin's Sister offers a competent presentation. The cinematography uses a distinct visual palette that aligns well with the tone. The sharp editing keeps the narrative moving at a brisk pace, maximizing the impact of the key sequences.
Beyond the narrative, My Cousin's Sister resonates with current cultural themes in the Romance space. It stays within the established boundaries of its genre, providing exactly what core fans expect without reinventing the wheel.
As of January 2026, My Cousin's Sister is available in theaters worldwide. For streaming audiences in the US, UK, and India, look for availability on major platforms roughly 45-60 days after the theatrical release. Don't miss the high-definition experience provided by premium large format (PLF) screenings.
The plot of My Cousin's Sister centers on a unique premise within the Romance landscape. Yasuo, who stayed in the house of his father, Tase, who had been friends with his uncle. Tase's daughter, Seiko, feels more and more like watching Yasuo sincere, Yasuo also feels excited about Seiko. Every night, Seiko, whose body was heated by the lustrous lust. He start to attract Yasuo more actively! The second act serves as a major turning point, leading to a climax that fans of 2018 cinema will find fairly predictable.
The ending of My Cousin's Sister has sparked significant debate on social media. It signifies the ambiguous resolution of the main plot thread. Given the current box office momentum, discussions of a My Cousin's Sister sequel or a wider cinematic universe are already gaining traction.
Final verdict for My Cousin's Sister (2018): with an audience rating of 4/10, the reception has been negative. It is a recommended for fans of Romance, Drama cinema who appreciate attention to detail.
Analyzing the audience sentiment, IMDb rating of 4/10, and global collection metrics, My Cousin's Sister stands as a challenging project for the creators. It remains an essential piece of the 2018 cinematic year.
My Cousin's Sister is considered a flop based on audience ratings of 4/10 and lower collections.
Based on the low rating of 4/10, My Cousin's Sister may not be worth watching unless you are a die-hard fan.
My Cousin's Sister is a Romance, Drama movie that Yasuo, who stayed in the house of his father, Tase, who had been friends with his uncle. Tase's daughter, Seiko, feels more and more like watching Yas...
My Cousin's Sister is considered a flop based on audience ratings of 4/10 and lower collections.
Based on the low rating of 4/10, My Cousin's Sister may not be worth watching unless you are a die-hard fan.
My Cousin's Sister is a Romance, Drama movie that Yasuo, who stayed in the house of his father, Tase, who had been friends with his uncle. Tase's daughter, Seiko, feels more and more like watching Yas...
My Cousin's Sister is a Romance, Drama movie. Please check the content rating before watching with family.
You can find streaming options and availability for My Cousin's Sister on popular platforms. Check movieMx for the latest updates and reviews.
My Cousin's Sister features a talented cast. Check our "Top Cast" section to see the full list of actors and the characters they play in this film.
The runtime and duration of My Cousin's Sister are available in the movie details section. It's a gripping story that keeps you engaged from start to finish.
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