Prime Video’s latest K-drama original, Absolute Value of Romance, a coming-of-age series, is arriving on the platform April 17, 2026. Blending awkward teenage moments with bittersweet humour and heartfelt storytelling, the series follows a young aspiring writer as they navigate high school, friendship, and relationships. Not to mention, its here for fujoshis everywhere.
Absolute Value of Romance is created and directed by Lee Tae-gon (Hello My Twenties!, Hello My Twenties! 2, True to Love) and written by Lee Min-ju. The series is also produced by Coupang Play, Mediacorp, Good Wave Inc, and Borderless Film.
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What is Absolute Value of Romance about?
Yeo Ui-Ju (Kim Hyang-Gi) is a high school student who lives a double life. She is an ordinary student by day and a BL romance novelist at night. She writes romance novels featuring handsome teachers as her main characters. She unexpectedly encounters four of these good-looking teachers in real life, and her school life becomes tumultuous.
One of the teachers is Ga Wu-Su (Cha Hak-Yeon, stagename: N). He is a genius math teacher with an IQ of 156 and is a Mensa member who rarely smiles. Another teacher is No Da-Ju (Kim Jae-Hyun), who is a Japanese teacher with a bright personality. Jung Gi-Jeon (Sohn Jeong-Hyuck) is a PE teacher with a masculine personality. Lastly, Yun Dong-Ju (Kim Dong-Kyu) is a gentle and sweet Korean language teacher.
Absolute Value of Romance Cast
Prime Video has also released in-depth character and cast information, which is listed below:
- Kim Hyang Gi as Yeo Eui-ju: Eui-ju is an ordinary high school student who is average in every way and tries to keep a low profile at school. But at night, she secretly becomes a writer, posting daring adults-only novels online. Despite her enthusiasm, her work barely gets any views. Though highly observant and empathetic, she has always been hopeless when it comes to real-life romance. However, her life as a writer takes an unexpected turn when four handsome new teachers arrive at her school. Kim Hyang has also starred in: Cashero, At Eighteen, Along with the Gods: The Two Worlds.
- Cha Hak-yeon (of VIXX) as Ga Woo-su: Woo-su is a gorgeous yet cold-looking man with piercing eyes who rarely smiles. Born and raised by a family of renowned mathematicians, he was a math prodigy with extraordinary memory, who taught himself to calculate numbers even before learning how to speak. However, when a life-changing incident occurred where he nearly lost his vision, he gave up on studying abroad and instead chose to become a math teacher. A new beginning at a high school, and this one student, Eui-ju, gets on his last nerves. Cha Hak-yeon has also starred in: Oh My Ghost Clients, Bad and Crazy
- Kim Jae-hyun (of N.Flying) as Noh Da-ju: Da-ju is a Japanese teacher and a gifted polyglot fluent in multiple languages. Always playful and sometimes mischievous, Da-ju is the ‘life of the party’ at school. Born to a wealthy family, he has been friends with Woo-su since elementary school. Nevertheless, they still squabble over everything as they’re so different as people. However, deep in their heart, they truly care for each other like brothers. Kim Jae-hyun has also starred in Twenty-Five Twenty-One.
- Son Jeong-hyuk as Jung Gi-jeon: Gi-jeon is a luge athlete who retired due to a severe injury and became a sports teacher. Despite his masculine appearance, he is clumsy and warm on the inside, which makes him even more popular among the students. Now, he has a new goal—turning Eui-ju, whom he sees as an exceptional talent in running, into his next sports prodigy. Son Jeong-hyuk also starred in You Are the Apple of My Eyes.
- Kim Dong-gyu as Yoon Dong-ju: Is a Korean teacher. Warm-hearted and innocent, Dong-ju’s charm is quite the opposite of that of his friends. Although he’s the eldest in the F4 group, he is often mistaken for the youngest because of his baby face. Treating his students with respect, he always uses honorifics and never loses his temper.
The cast also includes Kim Sohee as Choi Go-ya, a stylish and romantic-at-heart student who has been Eui-ju’s best friend for three years, and Gladys Bay as Jenny, an exchange student from Singapore who radiates positive energy wherever she goes.
What other KDramas are on Prime Video?
- Siren’s Kiss
- Spring Fever
- Surely Tomorrow
- Nice to Not Meet You
- Confidence Queen
- Head Over Heels
- GOOD BOY
- The Divorce Insurance
- Newtopia
