If you’re just starting your journey into the world of BL, it can feel overwhelming — so many titles, couples, and eras to choose from. That’s why some series matter more than others. These Classic Thai BL dramas are not just “old favorites”; they are the foundation of the genre. They introduced iconic tropes, unforgettable couples, and storytelling styles that still shape BL today. If you’re new to BL, these are the must-watch series that will help you understand where it all began — and why fans fell in love in the first place.
SOTUS: The Series (2016)
Episodes:
- Season 1: 15 + 1 Special
- Season 2 (SOTUS S): 13
Cast:
- Singto Prachaya as Kongphob Suthiluck
- Krist Perawat as Arthit Rojnapat
Where to Watch: WeTV
Set in the Faculty of Engineering, SOTUS introduced many fans to Thai BL for the very first time. The strict SOTUS system forces freshmen to endure hierarchy and discipline to earn their gear.
Kongphob, outspoken and principled, refuses to bow to unfair treatment. His defiance puts him directly against Arthit, the stern head hazer who believes authority builds character. What starts as confrontation slowly evolves into mutual respect — and eventually, love.
💡 Why it’s iconic:
SOTUS laid the foundation for the university BL trope and gave us one of the most influential BL couples in history
Theory of Love (2019)
Episodes: 12 + 1 Special
Cast:
- Atthaphan Poonsawas (Gun) as Third
- Jumpol Adulkittiporn (Off) as Khai
Where to Watch: Viki
Theory of Love tells a painfully realistic story of unrequited love between best friends. Third has loved Khai in silence for years, knowing his feelings may never be returned.
When heartbreak finally pushes Third to give up, Khai begins to realize what he’s been taking for granted. The series delicately explores emotional growth, regret, and learning how to love properly.
💡 Why it’s iconic:
A masterclass in slow-burn angst and emotional realism that resonated deeply with BL audiences.
TharnType: The Series (2019)
Episodes:
- Season 1: 12 + 2 Specials
- Season 2: 12 + 1 Special
Cast:
- Suppasit Jongcheveevat (Mew) as Tharn
- Kanawut Traipipattanapong (Gulf) as Type
Where to Watch: Viki
Forced to share a dorm room, openly gay music student Tharn and homophobic freshman Type clash instantly. Type’s hostility is rooted in unresolved trauma, while Tharn responds with patience and warmth.
As their walls slowly come down, hatred turns into desire, and desire into a complicated, intense love story.
💡 Why it’s iconic:
One of the most talked-about BLs ever — controversial, emotional, and hugely influential.
Dark Blue Kiss (2019)
Episodes: 12
Cast:
- Thitipoom Techaapaikhun (New) as Kao
- Tawan Vihokratana (Tay) as Pete
- Chayapol Jutamat (AJ) as Non
- Suphakorn Sriphothong (Podd) as Sun
- Gawin Caskey (Fluke) as Mork
Where to Watch: YouTube
Kao and Pete are a long-term couple navigating adult problems, family expectations, and jealousy. Kao’s fear of disappointing his mother strains their relationship.
Meanwhile, Sun and Mork’s unexpected bond offers a parallel story of healing and second chances.
💡 Why it’s iconic:
A mature BL that explores long-term relationships beyond the honeymoon phase.
2gether: The Series (2020)
Episodes:
- Season 1: 13
- Season 2: 5
- Movie
Cast:
- Vachirawit Chivaaree (Bright) as Sarawat
- Metawin Opas-iamkajorn (Win) as Tine
Where to Watch: Available on multiple platforms
Tine enters a fake dating arrangement with Sarawat to escape an unwanted admirer — only for pretend feelings to become real.
Lighthearted, musical, and charming, the series balances humor with heartfelt romance.
💡 Why it’s iconic:
A global BL phenomenon that brought Thai BL into the mainstream worldwide.
Until We Meet Again (2020)
Episodes: 17
Cast:
- Natouch Siripongthon (Fluke) as Pharm
- Thitiwat Ritprasert (Ohm) as Dean
- Katsamonnat Namwirote (Earth) as Intouch
- Noppakao Dechaphatthanakun (Kao) as Korn
Where to Watch: Viki
Linked by reincarnation, Pharm and Dean slowly uncover a tragic love from the past that binds their souls together.
This emotionally rich narrative blends fate, trauma, and healing across generations.
💡 Why it’s iconic:
A deeply emotional BL that popularized reincarnation and destiny themes in the genre.
My Oxygen (2020)
Episodes: 13
Cast:
- Supanut Lourhaphanich (Nut) as Solo
- Chanapoom Thenwong (Petch) as Gui
Where to Watch: Viki
After being left to fend for himself, Gui works at a café while studying engineering, surviving through kindness and resilience. One rainy night, he meets Solo, a wealthy music student burdened by grief after losing his mother.
Despite their very different worlds, the two form a gentle bond built on emotional support and understanding that slowly turns into love.
💡 Why it’s iconic:
A soft, comforting BL that focuses on healing, emotional safety, and quiet romance.
I Told Sunset About You (2020)
Episodes:
- Season 1: 5
- Season 2: 5
Cast:
- Putthipong Assaratanakul (Billkin) as Teh
- Krit Amnuaydechkorn (PP Krit) as Oh-Aew
Where to Watch: Viki
Childhood friends Teh and Oh-Aew reunite years after a painful fallout. As Teh tutors Oh-Aew in Chinese, unresolved feelings resurface alongside questions about identity, ambition, and love.
The series captures raw emotions, longing, and self-discovery with cinematic beauty.
💡 Why it’s iconic:
Often called one of the most artistically powerful BLs ever made.
My Gear and Your Gown (2020)
Episodes: 12
Cast:
- Pahun Jiyacharoen (Marc) as Itt
- Pawin Kulkarunyawich (Win) as Pai
Where to Watch: WeTV
Pai is a top medical student who doubts his worth and avoids love. His structured world begins to change when he meets Itt, a confident engineering student who challenges Pai’s insecurities.
Their relationship grows through patience, reassurance, and emotional growth.
💡 Why it’s iconic:
A heartfelt BL about self-worth, vulnerability, and learning to accept love.
Tonhon Chonlatee (2020)
Episodes: 10
Cast:
- Suphakorn Sriphothong (Podd) as Tonhon
- Thanawat Rattanakitpaisan (Khaotung) as Chonlatee
Where to Watch: YouTube
Chonlatee has loved Tonhon since childhood, always from a distance. When Tonhon becomes single, Chonlatee reinvents himself to finally be seen.
As feelings intensify, Tonhon struggles with jealousy and denial, complicating their already fragile dynamic.
💡 Why it’s iconic:
A BL that openly tackles internalized homophobia and emotional confusion.
My Engineer (2020)
Episodes: 19
Cast:
- Patpasit Na Songkhla (Cooper) as Bohn
- Kritsanapong Soonthornchatchawet (Poy) as Duen
- Perth Nakhun Screaigh (Perth) as Ram
- Talay Sanguandikun (Lay) as King
Where to Watch: YouTube
Following multiple couples, My Engineer explores different paths to love — from revenge turning into affection, to quiet friendships evolving into romance.
Each story highlights emotional growth, vulnerability, and acceptance.
💡 Why it’s iconic:
A fan-favorite ensemble BL that popularized multiple-couple storytelling.
Why R U? (2020)
Episodes: 13 + 1 Special
Cast:
- Suppapong Udomkaewkanjana (Saint) as Tutor
- Pruk Panich (Zee) as Fighter
- Karn Kritsanaphan (Jimmy) as Saifah
- Sittichok Pueakpoolpol (Tommy) as Zon
Where to Watch: Viki
When Zon discovers his sister’s BL novel mirrors his own life, fiction and reality collide. Meanwhile, Tutor and Fighter navigate a volatile relationship that turns rivalry into passion.
The series blends meta storytelling with intense romance.
💡 Why it’s iconic:
Bold, dramatic, and unforgettable — especially for its chemistry-driven couples.
Bad Buddy (2021)
Episodes: 12
Cast:
- Korapat Kirdpan (Nanon) as Pran
- Pawat Chittsawangdee (Ohm) as Pat
Where to Watch: Viki
Born into rival families, Pran and Pat maintain a public rivalry while secretly cherishing a deep friendship.
As emotions evolve, they must decide whether love is worth defying years of hatred.
💡 Why it’s iconic:
A modern classic that subverted BL tropes with honesty, chemistry, and emotional maturity.
Don’t Say No (2021)
Episodes: 12 + 1 Specials
Cast:
- Chalongrat Novsamrong (First) as Fiat
- Phachara Suansri (Ja) as Leo
Where to Watch: iQIYI
Best friends Leo and Fiat finally confront years of suppressed feelings. Transitioning from friendship to romance proves more complicated than expected.
Alongside them, a second couple explores fear of commitment and emotional walls.
💡 Why it’s iconic:
A direct continuation that gives fan-favorite characters room to grow.
Fish Upon the Sky (2021)
Episodes: 12
Cast:
- Phuwin Tangsakyuen as Pi
- Naravit Lertratkosum (Pond) as Mork
Where to Watch: YouTube
After a glow-up, Pi attempts to pursue his longtime crush, only to clash with Mork — who may not be a rival after all.
What starts as misunderstanding becomes an unexpectedly sweet romance.
💡 Why it’s iconic:
A playful, feel-good BL perfect for new fans who enjoy rom-com vibes.
Watching these classic Thai BL isn’t about going backward — it’s about starting right. They give new fans emotional context, cultural insight, and a deeper appreciation for how the genre has grown over time. Once you’ve experienced these stories, modern BLs will hit differently, with richer meaning and stronger impact. If you’re new to BL, consider this your roadmap — these series aren’t optional, they’re essential.
