Double Helix (2026) official poster featuring Ayden Sng as Lu Feng and Lyu Sitong as Cheng Yichen — Chinese BL drama

Double Helix

CompletedTV Series🇨🇳

SYNOPSIS

Lu Feng (Ayden Sng) is the rebellious heir of a wealthy family, a young man used to getting what he wants and equally used to being told what his life is supposed to look like. Cheng Yichen (Lyu Sitong) is the quiet top student at his school, careful, hard-working and more or less invisible until Lu Feng decides otherwise. Their high-school years turn into a first love neither of them knows how to hide, and Double Helix opens inside that fragile window before everything breaks: the kind of romance that feels invincible right up to the moment a single secretly taken photograph lands in the wrong hands. When the picture reaches their families, the punishment is immediate. Lu Feng is sent abroad to the United States, Yichen transfers schools, and the two are pulled apart for years with no chance to explain themselves to each other.

The reunion, when it finally comes, happens on the worst possible terms. Lu Feng returns as the new executive director of the company where Yichen now works in the design department, and the boy he lost is suddenly sitting on his payroll. What follows is a love-and-hate spiral of pride, resentment and unfinished feeling, squeezed from every side by family expectation and an arranged engagement neither man asked for. Running parallel to the present day is the school-era timeline, where Cheng Yichen (He Jiashu) appears as his teenage self and Qin Lang (Fa Xuange) carries a second couple's arc that mirrors the main pair's. Around them, Zhuo Lan (Li Keyi), Lu Yu (Yang Kexin) and Zhu Sha (Miao Jingou) fill out the circle of family and friends that neither relationship can ever fully escape.

Adapted from Lan Lin's danmei web-novel series A Round Trip to Love (双程系列), this Chinese, Singaporean production is the second time the story has reached the screen after the 2016 two-part film version, and the extra room of a twelve-episode series finally lets the decade-long timeline breathe. Directed by Li Yingyi for Here We Go Production Company, it premiered on GagaOOLala on 8 May 2026 and closed on 13 June 2026, streaming worldwide outside Japan and South Korea. The tone is angst-forward rather than comfort viewing: obsession, class difference, filial duty and the cost of being exposed are named openly and played as emotional wreckage rather than spectacle. Whether Lu Feng and Cheng Yichen can build anything honest out of ten years of damage is the one question the finale keeps for itself.

CONTENT DETAILS

Native Title
双程
Original Title
Double Helix
Also Known As
双程, Shuang Cheng, Shuāng Chéng, A Round Trip to Love, Double Helix The Series
Adaptation
Adapted from the Chinese danmei (boys' love) web-novel series "A Round Trip to Love" (双程系列 / Shuang Cheng) by author Lan Lin (蓝淋). The story was previously adapted into the 2016 "A Round Trip to Love" live-action film duology; the 2026 Double Helix is a new full-length series remake of the same source novel.
Themes
Key Themes
First LoveForbidden LoveReunionSecond ChancesFamily PressureObsessionLove and HateClass DifferenceWorkplace RomanceAngstMelodramaSeparation
Language
Mandarin
Director
Li Yingyi
Original Author
Lan Lin
Seasons
1
Episodes
12
Duration
44 min
Aired Start
Aired End
Release Year

WATCH ON

GagaOOLalaYouTube

MAIN CAST & CHARACTERS

SUPPORTING CAST

KEY TAKEAWAYS

  • Double Helix (双程) is a 2026 Chinese, Singaporean BL drama adapted from Lan Lin’s danmei novel “A Round Trip to Love,” with 12 episodes that premiered May 8, 2026 and ended June 13, 2026 on GagaOOLala.
  • Lead pairing: Singaporean actor Ayden Sng (Sun Zheng) as wealthy heir Lu Feng and Lyu Sitong as gentle top student Cheng Yichen, in a decade-spanning love-and-hate romance.
  • Second couple: Fa Xuange as Qin Lang and He Jiashu as the younger Cheng Yichen carry a parallel storyline.
  • A remake: the same novel was previously filmed as the 2016 “A Round Trip to Love” movie duology; this is a new full-length series version.
  • The plot: high-school lovers separated by a leaked photo and family pressure reunite years later as company boss (Lu Feng) and design-department employee (Cheng Yichen).
  • Where to watch: officially on GagaOOLala worldwide (except Japan and South Korea), with Episode 1 free and later episodes on VIP; also available via YouTube, Viu and Heavenly.
  • Soundtrack: insert songs include “Requisite” (必选题) performed by the four leads, “Are You There” (在吗) by Ayden Sng & Lyu Sitong, and “Become an Addiction” (成瘾) by Yang Kexin.

EDITOR’S VERDICT

7.5/10

Double Helix arrives with a heavy weight of expectation: it is the latest screen version of Lan Lin's danmei classic A Round Trip to Love, a novel its fandom has loved (and argued over) for more than a decade. As a 2026 remake, its biggest job is simply to do the source justice, and for the most part it commits hard to the novel's signature blend of first love, separation and obsessive reunion.

The Cast & Chemistry

Singaporean actor Ayden Sng is the headline draw as Lu Feng, leaning into the character's possessive, wounded intensity, while Lyu Sitong plays Cheng Yichen as the quieter emotional anchor. The decade-spanning structure asks both leads to play teenage tenderness and adult resentment, and the boardroom-reunion dynamic is where the series is strongest.

What to Expect

  • Pure melodrama: leaked photos, forced separations, an arranged engagement and a love-hate reunion, this is angst-forward BL.
  • A faithful remake: fans of the 2016 films and the original novel will recognise the major beats.
  • Compact run: 12 episodes of roughly 30 to 47 minutes keep the emotional whiplash moving quickly.

The Verdict

If you came for slow-burn comfort, look elsewhere; Double Helix is built for viewers who want their BL dramatic, obsessive and unafraid of pain. As a modern reintroduction to one of danmei's most enduring love stories, it lands.

Editorial draft score: 7.5/10

OFFICIAL TRAILER

OFFICIAL OST

EPISODE SCHEDULE

12 / 12 episodes aired · Completed
EP 1
08 May 2026
Aired
EP 2
08 May 2026
Aired
EP 3
15 May 2026
Aired
EP 4
16 May 2026
Aired
EP 5
22 May 2026
Aired
EP 6
23 May 2026
Aired
EP 7
29 May 2026
Aired
EP 8
30 May 2026
Aired
EP 9
05 Jun 2026
Aired
EP 10
06 Jun 2026
Aired
EP 11
12 Jun 2026
Aired
EP 12
13 Jun 2026
Aired

FREQUENTLY ASKED QUESTIONS

What is Double Helix (2026) about?

Double Helix is a 2026 Chinese, Singaporean BL drama about high-school sweethearts Lu Feng, a wealthy heir, and Cheng Yichen, a gentle top student, who are torn apart when a secretly taken photo exposes their relationship to their families. Years later they reunite as company boss and employee, reigniting an obsessive love-and-hate romance across roughly a decade of separation, family pressure and old wounds.

Is Double Helix based on a novel?

Yes. Double Helix is adapted from the Chinese danmei (BL) web-novel series "A Round Trip to Love" (双程系列 / Shuang Cheng) by author Lan Lin (蓝淋).

Is Double Helix a remake?

Yes. The same Lan Lin novel was previously adapted into the 2016 "A Round Trip to Love" live-action film duology. The 2026 Double Helix is a new, full-length series remake of that source material.

Is Double Helix a Chinese or a Thai drama?

It is a Chinese, Singaporean production. It is filmed in Mandarin and produced by Here We Go Production Company, with Singaporean actor Ayden Sng (Sun Zheng) leading alongside Chinese actor Lyu Sitong.

Who stars in Double Helix?

The main leads are Ayden Sng (Sun Zheng) as Lu Feng and Lyu Sitong as Cheng Yichen. The second couple is played by Fa Xuange as Qin Lang and He Jiashu as the younger Cheng Yichen, with Li Keyi, Yang Kexin and Miao Jingou in supporting roles.

How many episodes is Double Helix?

Double Helix has 12 episodes, forming one complete season. Based on confirmed episode runtimes, each installment runs roughly 44 minutes on average, with individual episodes ranging from about 40 to 51 minutes.

When did Double Helix air?

It premiered on GagaOOLala on May 8, 2026 and concluded with its finale on June 13, 2026, releasing weekly.

Where can I watch Double Helix with English subtitles?

Double Helix streams officially on GagaOOLala worldwide (except Japan and South Korea), where Episode 1 is free and later episodes require VIP. The production's own official YouTube channel, 雙程 Double Helix, also uploads full episodes and previews.

Is Double Helix free to watch?

Episode 1 is available free on GagaOOLala, while the remaining episodes require a GagaOOLala VIP subscription. Full episodes are also uploaded to the drama's own official YouTube channel.

What does "Double Helix" / 双程 mean?

The Chinese title 双程 (Shuang Cheng) literally means "double journey" or "round trip," which is why the novel is known in English as "A Round Trip to Love." The English series title "Double Helix" plays on the idea of two lives intertwined and inseparable, like the strands of a double helix.

What is the soundtrack of Double Helix?

The series uses several insert songs, including "Requisite" (必选题) performed by the four main leads, "Are You There" (在吗) by Ayden Sng and Lyu Sitong, "Become an Addiction" (成瘾) by Yang Kexin, and "Little Hero" (小英雄) by Fa Xuange and He Jiashu. "Requisite" is available on Spotify as an official single, released on 8 May 2026 by Tencent Music Entertainment Group: https://open.spotify.com/album/0pc9hb3DHTjJ7SUem8UlOf

Is Double Helix a BL drama?

Yes. Double Helix is a boys' love (BL) romantic drama, centered on the male-male relationship between Lu Feng and Cheng Yichen, with a second BL couple in a parallel arc.

Who plays the second couple in Double Helix?

The parallel storyline follows Fa Xuange as Qin Lang and He Jiashu as the younger version of Cheng Yichen, a couple whose arc runs alongside the main Lu Feng and Cheng Yichen reunion.

Who directed Double Helix?

Double Helix was directed by Li Yingyi, with production credited to Here We Go Production Company and producer ANITA.

Does Double Helix have an official trailer?

Yes. The drama's own official YouTube channel, 雙程 Double Helix (@doublehelix2026), released the final trailer 《雙程》終極版預告, which you can watch at https://www.youtube.com/watch?v=SAliAWjx-m4. That channel is run by the production itself and also carries full episodes and short in-episode previews, so it is the safest source for officially released footage rather than fan-made edits or unlicensed re-uploads.

What content rating does Double Helix have?

Double Helix has not received a public content rating from GagaOOLala or any other streaming platform at the time of publishing.

How does Double Helix compare to the 2016 "A Round Trip to Love" films?

Both are based on the same Lan Lin novel and follow the same central couple, but Double Helix is a full 12-episode series remake rather than a two-part film, giving the decade-spanning story more room to develop the reunion, the second couple's arc and the supporting cast.

Is Double Helix connected to other Lan Lin dramas?

Double Helix adapts Lan Lin's "A Round Trip to Love" specifically; it is not a direct sequel or shared universe with the author's other danmei works, though fans of her writing style may recognize similar themes of obsessive, angst-heavy romance.

Does Double Helix have a happy ending?

The series follows Lu Feng and Cheng Yichen through repeated separations and reconciliations across the full 12 episodes, resolving their arc by the finale; specific plot details are left for viewers to discover on GagaOOLala.

Where can international fans watch Double Helix for free?

Outside of GagaOOLala's free first episode, the drama's official YouTube channel (雙程 Double Helix) uploads full episodes at no cost, though availability and region restrictions can change over time.

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