Fantasy and time-travel K-dramas always bring us exciting stories where romance, fate, and destiny get a magical twist. From emotional journeys across different timelines to hilarious body swaps and powerful second chances, these dramas prove that time is never just time, it’s a chance to rewrite your story. Here are 10 of the best fantasy and time travel K-dramas you should absolutely watch.

The Best Hit (2017)

Episodes: 32 (short episodes, about 30 minutes each)

Where to Watch: Viki, Kocowa

Actors: Yoon Shi-yoon, Kim Min-jae, Lee Se-young, Cha Eun-woo

The Best Hit is a lighthearted yet emotional time-slip drama that mixes comedy, music, and heartfelt romance. It follows a popular idol from the 1990s (played by Yoon Shi-yoon) who mysteriously travels forward in time to 2017.

There, he discovers the modern world of K-pop and faces unexpected challenges, including meeting his son, who has no idea who he is. This drama shines with its nostalgic vibe, quirky humor, and touching father-son dynamic.

Reborn Rich (2022)

Episodes: 16

Where to Watch: Viki, Netflix (in some regions)

Actors: Song Joong-ki, Lee Sung-min, Shin Hyun-bin

In Reborn Rich, Song Joong-ki delivers one of his best performances as a loyal employee who is betrayed and murdered by the powerful family he served. But fate gives him a second chance: he wakes up in the body of the youngest grandson of the same family in the 1980s.

Using his knowledge of the future, he carefully plans his revenge while climbing the corporate ladder. It’s a thrilling mix of business politics, family drama, and time-bending twists.

Perfect Marriage Revenge (2023)

Episodes: 12

Where to Watch: Viki

Actors: Jung Yoo-min, Sung Hoon

This drama brings together romance and revenge with a fantasy twist. A young woman dies tragically after being betrayed by her own family and husband. But she suddenly gets transported back to her younger self, just before her doomed marriage.

This time, she plans everything differently, choosing a new partner and rewriting her destiny. Perfect Marriage Revenge is both addictive and satisfying, especially for viewers who love seeing karma served with a smile.

Splash Splash Love (2015)

Episodes: 2 (mini-drama)

Where to Watch: Viki, Kocowa

Actors: Kim Seul-gi, Yoon Doo-joon

If you want something short and sweet, Splash Splash Love is a must-watch. It tells the story of a high school girl who struggles with math but somehow travels back in time to the Joseon dynasty.

There, she meets a young king (Yoon Doo-joon) who needs help with scientific knowledge. Their adorable romance and comedic interactions make this mini-drama a hidden gem that feels magical from start to finish.

Twinkling Watermelon (2023)

Episodes: 16

Where to Watch: Viki

Actors: Ryeoun, Choi Hyun-wook, Seol In-ah, Shin Eun-soo

This heartfelt drama follows a talented high school boy who travels back to the 1990s and meets his teenage father. Through music and friendship, he discovers secrets about his family while creating unforgettable memories.

Twinkling Watermelon is beautifully shot and emotional, exploring youth, dreams, and parent-child relationships. It’s both nostalgic and inspiring, perfect for viewers who love family-centered fantasy tales.

Tomorrow (2022)

Episodes: 16

Where to Watch: Netflix

Actors: Kim Hee-sun, Rowoon, Lee Soo-hyuk

Unlike many other time-travel K-dramas, Tomorrow dives into the fantasy world of grim reapers. Rowoon plays a young man who accidentally falls into a coma and becomes half-human, half-spirit. He joins a crisis management team of grim reapers who work to save people from suicide.

The drama is moving, thought-provoking, and filled with powerful life lessons. Each episode highlights real struggles, making it deeply emotional yet beautifully hopeful.

A Time Called You (2023)

Episodes: 12

Where to Watch: Netflix

Actors: Jeon Yeo-been, Ahn Hyo-seop, Kang Hoon

A Time Called You is a Korean remake of the Taiwanese hit Someday or One Day. It tells the story of a grieving woman (Jeon Yeo-been) who travels back in time and wakes up in another girl’s body in the 1990s.

There, she meets a boy who looks exactly like her late boyfriend. The drama is full of mystery, romance, and shocking twists that keep you hooked until the end.

The Story of Park’s Marriage Contract (2023)

Episodes: 12

Where to Watch: Viki

Actors: Lee Se-young, Bae In-hyuk

This fantasy romance mixes history with modern times. A young Joseon woman (Lee Se-young) tragically dies on her wedding night but suddenly wakes up in modern-day Seoul. There, she meets a cold businessman (Bae In-hyuk) and agrees to a contract marriage with him.

Their relationship develops slowly, blending humor, cultural differences, and heartfelt emotions. It’s a touching story about second chances and love beyond time.

Lovely Runner (2024)

Episodes: 16

Where to Watch: Viki

Actors: Byeon Woo-seok, Kim Hye-yoon

Lovely Runner is one of the most talked-about K-dramas of 2024. It follows a devoted fan (Kim Hye-yoon) who is devastated by the death of her favorite idol.

By a twist of fate, she travels back in time to his teenage years, determined to save him from his tragic future. This drama combines romance, youth, and time travel in the sweetest way possible, with Byeon Woo-seok winning hearts as the charming male lead.

18 Again (2020)

Episodes: 16

Where to Watch: Viki, Netflix (in some regions)

Actors: Lee Do-hyun, Kim Ha-neul, Yoon Sang-hyun

Inspired by the American film 17 Again, this drama tells the story of a middle-aged man whose marriage is falling apart. Suddenly, he gets transformed back into his 18-year-old body (played by Lee Do-hyun) but keeps his adult mind.

He gets a second chance to relive his youth, reconnect with his kids, and win back his wife. 18 Again is funny, heartwarming, and emotional, a perfect reminder to appreciate the present.

From hilarious body swaps to heart-wrenching second chances, these 10 fantasy and time travel K-dramas prove why the genre is so loved. Each one offers a different take on love, destiny, and the choices we make. Whether you’re in the mood for something short like Splash Splash Love or deeply emotional like Reborn Rich, there’s a story here that will stay with you long after the final episode.