The Promise - Series Review | Plot, Cast, Episode Guide (2023)

The Promise - Series Review | Plot, Cast, Episode Guide (1)

The Promiseis a Vietnamese BL series about two stepbrothers and their budding romance. The feisty teenage protagonist has a rocky relationship with his older stepsibling. After getting into trouble at school, the main character is surprised when his nemesis shows sympathetic support. Their relationship improves, but they must navigate their vague and uneasy feelings for each other.

My aversion to stepbrother romances keeps me from embracing The Promise wholeheartedly. I'm also iffy about the constant cliches, convenient coincidences, and childish conflicts during the story. However, this BL series is undeniably well-produced, featuring beautiful visuals, dramatic music, and elegant artistry. The leads also give vibrant and poignant performances that elevate the material.

CastReviewEpisode GuideLinks

SummaryCast ▼

The Promise Summary

What is the drama called?

Biển Lặng

Where was the series made?


When was the drama released?


How long is The Promise?

Around 3 hours

What is the genre?

School romance

How would you describe The Promise?

Sad and emotional

How many episodes are in the drama?

6 episodes

How long is each episode?

Around 25 minutes


The Promise - Series Review | Plot, Cast, Episode Guide (2)

Tan is a high school student. After his father remarries, Tan and his older stepbrother Vu live in the same house. However, the two siblings don't get along. Tan resents Vu and clashes with him frequently. They have a hostile relationship despite being brothers. Even though Tan gets poor grades in school, he won't ask his scholarly older brother for mentoring help.

(Video) “Rewards of Faithfulness” | Sabbath School Panel by 3ABN - Lesson 12 Q1 2023

Recently, Tan was caught cheating on a school test. His classmate Dong tries persuading the teacher to give a lenient punishment. However, Ms. Nuong still demands a parent's signature on a report of what Tan did in class. Her request has troubled Tan, who doesn't want his father to know about the cheating. Tan conspires with his friends, Bich and Loc, to forge a signature. Yet, he can't copy his father's complex signature successfully.

Even though the stepbrothers are in different grades, Dong knows about Tan's cheating. Tan's classmate, Tuyet, has a crush on Dong. She tells her senior about everything that happened in class. During a heated exchange, Dong teases his younger sibling and calls him a cheater. The insult triggers a physical brawl between them. Dong overpowers Tan and almost punches him, but he stops just in time. Afterwards, Dong quietly contemplates his actions.

During dinner, Tan and his dad disagree over his academic performance. Tan's father wants to chat with Ms. Nuong, which worries Tan because of his cheating secret. Surprisingly, Dong helps him cover up the truth and even offers to mentor his little brother. This response appeases Tan's father, so the situation doesn't escalate. Tan is shocked his stepbrother stepped in to help. Reluctantly, he thanks Dong for supporting him.

Later, Tan still tries to forge his father's signature with little success. Dong helps him by recreating the exact signature perfectly. Once again, Tan is grateful for his stepbrother's unexpected kindness. Dong takes one of Tan's miniature toys as payment, joking that the Psyduck looks like his brother. Afterwards, the relationship between the two characters improves. Dong even gives Tan a ride to school every morning. They spend much time bonding and growing closer, unlike before.

The Promise Trailer

▲ SummaryReview ▼

The Promise Cast



Hoang Cong Dat (Hoàng Công Đạt)

The Promise - Series Review | Plot, Cast, Episode Guide (3)

Tan is a feisty high school student. He struggles academically and even tries to cheat during an exam. Tan resents his older stepbrother, who gets better grades than him. Tan is best friends with Bich and Loc. He also has fond feelings for Dong, the class monitor.

Hoang Cong Dat

The Promise - Series Review | Plot, Cast, Episode Guide (4)

Hoang Cong Dat (Hoàng Công Đạt) is a Vietnamese actor. He is born on November 25, 1993. His first BL project is the 2022 series, The Promise.


Vo Tran Song Duy (Võ Trần Song Du)

The Promise - Series Review | Plot, Cast, Episode Guide (5)

Vu is Tan's older stepbrother. His mother remarried Tan's father. However, his mom is currently working in Singapore and doesn't spend much time at home. Vu is an excellent student and gets great academic grades. Tan's classmate, Tuyet, has a crush on him.

Vo Tran Song Duy

The Promise - Series Review | Plot, Cast, Episode Guide (6)

Vo Tran Song Duy (Võ Trần Song Du) is a Vietnamese actor. His first BL project is the 2022 series, The Promise.

Supporting Cast

The Promise - Series Review | Plot, Cast, Episode Guide (7)

Tan's dad

Bao Cuong (Võ Cường)

The Promise - Series Review | Plot, Cast, Episode Guide (8)

Vu's mom

Dang Phuong Thao (Đặng Phương Thảo)

The Promise - Series Review | Plot, Cast, Episode Guide (9)


Le Dinh Ha (Lê Đình Hà)

(Video) Turkish Drama My Left Side (Sol Yanım) Cast Real-Life Partners Revealed !!!

The Promise - Series Review | Plot, Cast, Episode Guide (10)



The Promise - Series Review | Plot, Cast, Episode Guide (11)


Yen Nhi (Yến Nhi)

The Promise - Series Review | Plot, Cast, Episode Guide (12)


Pham Minh Tien

The Promise - Series Review | Plot, Cast, Episode Guide (13)


Buti Yeu Dau (Buti Yêu Dấu)

The Promise - Series Review | Plot, Cast, Episode Guide (14)

Ms. Nhung

The Promise - Series Review | Plot, Cast, Episode Guide (15)


Ryan Nhat Hao (Ryan Nhật Hào)

The Promise - Series Review | Plot, Cast, Episode Guide (16)

Thinh's dad

▲ CastEpisode Guide ▼

The Promise Review


Drama Review Score: 7.1


The Promise - Series Review | Plot, Cast, Episode Guide (17)

The Promise is a decent BL drama with engaging scenes and boisterous characters. Most episodes are enjoyable, taking the viewers on a wild journey with emotional ups and downs. Often, I feel entertained by thesteady stream of fights, flirting, and family tensions. The narrative has some clunky moments, particularly the multiple love triangles and contrived conflicts. It also indulges excessively in cliches and coincidences. Despite these hiccups, The Promise remains a fun, thrilling experience.

However, The Promise has an uninspired concept. I'm justnot fond of stepbrother romances in BL. These love stories carry icky implications, blurring the lines between family bonds and romantic attraction. Plus, they follow similar narrative structures and have predictable plot points. The Promise doesn't deviate much from the standard formula, delivering another reiteration of the tired old trope. This series lacks originality, especially in an era when the BL genre is experimenting with new, innovative ideas.

Maybe it's my bias speaking, but I never warmed to the stepbrother romance. As Tan and Vu become closer, I amnot persuaded by their romantic feelingsfor each other. The characters transition from animosity to attraction inorganically. Episode 4 features a controversial encounter, adding to the griminess of their relationship. The only time I feel swayed is Tan and Vu's steamy kissing scene near the end. The actors are surprisingly comfortable with their physical affection. Nevertheless, this couple doesn't appeal to me. I see them as brothers and not lovers.

(Video) Lucy Shimmers and the Prince of Peace (2020) | Full Movie | Scarlett Diamond, Vincent Vargas

The Promise is elevated significantly by its elegant artistry. It's a well-produced series with cozy, dreamlike visuals. Even if the filming locations aren't diverse, the cinematographycaptures an understated beauty in each setting. The best shots are the outdoor scenes, especially as the leads ride the bicycle along the beautiful coastal route. Furthermore, The Promise has a majestic soundtrack that complements its graceful aesthetic. The sentimental music works exceptionally well during the story's climaxes, accentuating the sensitive emotions.

In addition, The Promise has vibrant performances from the leads. Tan's actor (Hoang Cong Dat) is an impressive talent with a spunky demeanour. He immerses himself into the character,embodying all the quirks and mannerisms. Likewise, his costar (Vo Tran Song Duy) gives a solid showcase, albeit he must overcome a pretty unflattering hairstyle. The shallow part of me must admit that Dong's actor (Le Dinh Ha) is better looking. Initially, I wondered why he wasn't picked as the lead. Then, I witnessed his stiff acting and realized they cast everyone in the right roles. 😓

The Promise dips in quality midway as some conflicts become increasingly unpleasant to watch. The series rebounds with an entertaining finale, from the passionate kisses to the poignant exchanges. Plus, it saves the best cinematography until the last few scenes. While the ending is satisfying, it can't compensate for my apathy toward the stepbrother couple.This love story has been done before, like repeating old footsteps instead of venturing on a new road. The Promise rehashes familiar plots and stale romances, evoking only a middling review score from me.


Unoriginal story

The Promise offers engaging scenes and entertaining characters. However, it relies too much on cliches, coincidences, and contrived conflicts. This uninspiring love story lacks originality.

Stepbrother romance

A stepbrother romance is one of my least favourite tropes in BL. Tan and Vu don't persuade me with their inauthentic feelings for each other. Ultimately, I see them as brothers and not lovers.

Vibrant acting

Tan's actor (Hoang Cong Dat) is spunky and immerses himself in the role, embodying all the character's quirks. He shares a comfortable rapport with his costar (Vo Tran Song Duy).

Happy ending

The Promise has a happy ending after passionate encounters and emotional exchanges between the characters. The finale has beautifully filmed scenes with gorgeous cinematography.

Elegant artistry

This series is elevated by its elegant artistry. The cozy, dreamlike visuals bring out the understated beauty in each setting. Plus, the majestic soundtrack accentuates the story's poignant emotions.


The Promise is a well-produced BL drama with excellent acting & exquisite artistry. Yet, this stepbrother romance feels familiar and uninspired, not deviating much from the standard formula.

▲ ReviewLinks ▼

The Promise Episodes

Episode Guide

The Promise - Series Review | Plot, Cast, Episode Guide (18)
  • Start Date April 22, 2022
  • End Date May 27, 2022
  • Episodes 6 episodes
  • Episode Length 25 minutes

The Promise has a total of 6 episodes. Each episode is around 25 minutes long. The last episode is around 30 minutes long. It is a medium-length BL drama, and you can finish the entire series in under 3 hours. The Promise started on April 22, 2022 and ended its last episode on May 27, 2022.

Episode 1

Episode 2

Episode 3

Episode 4

(Video) There For You ft. Star Davis | Season 2 Ep. 17 | STAR

Episode 5

Episode 6

Episode Reviews

Episode 1

While I'm not excited about the stepbrother romance, it's a decent premiere. This episode introduces the characters and their dynamics well. Their confrontation in the kitchen is an exhilarating moment!

Episode 2

Tan's actor is doing a great job with his portrayal. His character's childish personality irritates me, but the lead seems so natural and immersive. He nails the role of the annoying little brother.

Episode 3

This episode is supposed to develop the characters' feelings for each other, but I don't feel persuaded. Even though their relationship has improved, I still see them as brothers.

Episode 4

OMG, did he just grab his stepbrother's dick!? My jaw dropped at that moment! 😮 Vu seems okay with it, but I can't look at this couple the same way again. He just fondled his brother's balls!? WTF!

Episode 5

It must be the worst episode of The Promise. I hate how the story suddenly introduces a random antagonist to create conflict between the couple. The series feels increasingly unpleasant to watch.

Episode 6

The Promise rebounds strongly with an entertaining finale! That kiss is steamy and looks surprisingly comfortable. I also love those visuals in the final scenes, featuring sensational cinematography.

The Promise OST


Chẳng Nói Nên Lời

Trương Trần Anh Duy

None▲ Episode Guide

The Promise Information



(Video) Book of Joshua Summary: A Complete Animated Overview

Oril Nguyen (Oril Nguyễn) is a Vietnamese director. He directed the 2021 BL short movie, Beef, Cupcakes and Him. He also directed the 2022 BL series, The Promise.


1. The Chosen: Season One, Episodes 1 & 2
(The Chosen)
2. Sol Yanım | My Left Side Episode 5 (English Subtitles)
(My Left Side - Sol Yanım)
3. Jesus and the Outcast Woman at the Well
(The Chosen)
4. The Promise Episode 1 (English Subtitles)
(The Promise Official)
5. Secrets To A Successful Marriage
6. Repentance From Dead Works - Joe Sweet
Top Articles
Latest Posts
Article information

Author: Zonia Mosciski DO

Last Updated: 06/12/2023

Views: 5807

Rating: 4 / 5 (51 voted)

Reviews: 82% of readers found this page helpful

Author information

Name: Zonia Mosciski DO

Birthday: 1996-05-16

Address: Suite 228 919 Deana Ford, Lake Meridithberg, NE 60017-4257

Phone: +2613987384138

Job: Chief Retail Officer

Hobby: Tai chi, Dowsing, Poi, Letterboxing, Watching movies, Video gaming, Singing

Introduction: My name is Zonia Mosciski DO, I am a enchanting, joyous, lovely, successful, hilarious, tender, outstanding person who loves writing and wants to share my knowledge and understanding with you.