K-Drama Day 2025: Rakuten Viki’s 45+ Most-Rewatched Series

Rakuten Viki celebrates International K-Drama Day on September 25 with a curated collection of more than 45 of its most-rewatched series. The lineup spans fantasy, romance, thriller, and slice-of-life genres, enabling fans to revisit beloved dramas or discover new additions to their watchlists.

Time-Travel and Supernatural Romance

Journeys Through Time and Alternate Realities

Several dramas propel protagonists across time or into fictional worlds. “Lovely Runner,” adapted from a popular web novel, features Im Sol (Kim Hye Yoon), a devoted fan who time-travels to save her favorite star Ryu Sun Jae (Byeon Woo Seok) from death. “Twinkling Watermelon” follows CODA student Eun Gyeol (Ryeoun), transported via a mysterious music shop to 1995, where he meets his parents Lee Chan (Choi Hyun Wook) and Chung Ah (Shin Eun Soo) as teenagers, alongside Se Kyung (Seol In Ah), a virtuoso cellist.

“Moon Lovers: Scarlet Heart Ryeo” transports Go Ha Jin (IU) into the Goryeo Dynasty as Hae Su, where she entangles with the royal Wang family and the fearsome fourth prince Wang So (Lee Joon Gi). “The Legend of the Blue Sea” follows Joseon-era mermaid Sim Cheong (Jun Ji Hyun) who chases her beloved into modern Seoul and encounters his doppelgänger Heo Joon Jae (Lee Min Ho).

Mythological Beings in Modern Settings

• “My Love From the Star”: Alien Do Min Joon (Kim Soo Hyun), stranded since 1609, meets top actress Cheon Song Yi (Jun Ji Hyun) centuries later.
• “Guardian: The Lonely and Great God”: Goblin Kim Shin (Gong Yoo) seeks a human bride to end his immortality, meeting Ji Eun Tak (Kim Go Eun) and an amnesiac grim reaper (Lee Dong Wook).
• “My Roommate is a Gumiho”: 999-year-old gumiho Shin Woo Yeo (Jang Ki Yong) and Lee Dam (Hyeri) live together after she swallows his magical transformation bead.
• “Tale of the Nine-Tailed”: Gumiho Yi Yeon (Lee Dong Wook) and producer Nam Ji Ah (Jo Bo Ah), who investigates the supernatural, navigate his brother Lee Rang (Kim Bum).
• “The Bride of Habaek”: Neuropsychiatrist Yoon So Ah (Shin Sae Kyeong) bears her family’s ancient duty to serve water god Ha Baek (Nam Joo Hyuk), who develops feelings for her.

Contemporary Romance and Comedy

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Workplace Secrets and Hidden Identities

“Her Private Life” centers on art gallery curator Sung Deok Mi (Park Min Young) who secretly runs a fansite for boy group member Cha Shi An (ONE). When new director Ryan Gold (Kim Jae Wook) discovers her secret, romance ensues. “Shooting Stars” follows PR head Oh Han Byul (Lee Sung Kyung) at Star Force Entertainment and her relationship with A-list actor Gong Tae Sung (Kim Young Dae). “The Midnight Romance in Hagwon” reunites academy teacher Seo Hye Jin (Jung Ryeo Won) with former student Lee Joon Ho (Wi Ha Joon), who returns as a rookie instructor driven by lingering first-love feelings.

Physical Transformation and Self-Acceptance

“True Beauty” presents Lim Ju Gyeong (Mun Ka Young), who uses makeup to hide her natural face, meeting popular student Lee Su Ho (Cha Eun Woo) who shares emotional wounds. “My ID is Gangnam Beauty” features Kang Mi Rae (Im Soo Hyang), bullied for her appearance, who undergoes plastic surgery and reconnects with Do Kyung Suk (Cha Eun Woo), a man who values inner character. “Oh My Venus” stars lawyer Kang Joo Eun (Shin Min Ah), once celebrated as the “Daegu Venus,” who regains confidence with trainer Kim Young Ho (So Ji Sub). “She Was Pretty” reunites Kim Hye Jin (Hwang Jung Eum) with first love Ji Sung Joon (Park Seo Joon), now a handsome, successful editor.

Unconventional Relationships

“Love In Contract” explores a service providing fake spouses for social events. Professional fake wife Choi Sang Eun (Park Min Young) finds herself between longtime client Jung Ji Ho (Ko Kyung Pyo) and newcomer Kang Hae Jin (Kim Jae Yeong), an idol-turned-actor. “Weightlifting Fairy Kim Bok Joo” reunites childhood friends—weightlifter Kim Bok Joo (Lee Sung Kyung) pursuing elite status and swimmer Jung Joon Hyung (Nam Joo Hyuk), talent cursed with misfortune—as their bond transforms into romance.

Revenge, Deception, and Psychological Thrillers

Betrayal and Vengeance

“The Innocent Man” follows Kang Ma Ru (Song Joong Ki), who takes the blame for his girlfriend Han Jae Hee (Park Si Yeon) after she commits murder. Upon release, he seeks revenge against heiress Seo Eun Gi (Moon Chae Won) but falls in love instead. “Reborn Rich” presents Yoon Hyun Woo (Song Joong Ki), a chaebol secretary framed and executed, reborn as the family’s youngest son Jin Do Joon to orchestrate revenge and seize control.

A drama starring Baek Hee Sung (Lee Joon Gi) and detective Cha Ji Won (Moon Chae Won) depicts an initially perfect marriage shattered when her investigation into a brutal case reveals her husband’s dark secrets. “W” follows Oh Yeon Joo (Han Hyo Joo), searching for her missing webtoon-writer father, pulled into his fictional world where she meets Kang Cheol (Lee Jong Suk), an Olympic champion and self-made millionaire.

Supernatural and Urban Threats

“Happiness” unfolds in a stratified high-rise apartment where police officer Yoon Sae Bom (Han Hyo Joo) and detective Jung Yi Hyun (Park Hyung Sik) battle for survival when an infectious disease seals the building. “Doom at Your Service” pairs being Myul Mang (Seo In Guk), whose touch causes erasure, with web novel editor Tak Dong Kyung (Park Bo Young), diagnosed with 100 days to live. “While You Were Sleeping” features reporter Nam Hong Joo (Suzy) who can see the future but cannot prevent it, linked with prosecutor Jung Jae Chan (Lee Jong Suk) who acquires the same ability. “The Penthouse” depicts Hera Palace, a 100-story luxury tower that becomes a battleground for elite residents Sim Su Ryeon (Lee Ji Ah), Joo Dan Tae (Uhm Ki Joon), and Cheon Seo Jin (Kim So Yeon).

“Master’s Sun” pairs Tae Gong Sil (Kong Hyo Jin), cursed to see ghosts, with cold CEO Jo Joong Won (So Ji Sub), whose touch banishes her visions. “Hotel Del Luna” operates as a hotel exclusively for ghosts managed for 1,000 years by CEO Jang Man Wol (IU), disrupted when manager Goo Chan Sung (Yeo Jin Goo) arrives.

Historical and Sports Drama

Period and Fusion Narratives

“Mr. Queen” merges eras when modern chef Jang Bong Hwan (Choi Jin Hyuk) finds his soul trapped in queen-to-be Kim So Young (Shin Hae Sun) during Joseon. He navigates royal life while developing feelings for King Cheoljong (Kim Jung Hyun), a ruler who appears weak but harbors hidden cunning. “The Red Sleeve” chronicles the imperial romance between crown prince Yi San (Lee Junho), destined to become emperor, and court lady Seong Deok Im (Lee Se Young), forging profound connection despite status disparity.

Action and Athletics

“Descendants of the Sun” focuses on special forces captain Yoo Shi Jin (Song Joong Ki) and physician Kang Mo Yeon (Song Hye Kyo), whose conflicting worlds create friction as they navigate dangerous foreign circumstances. “Strong Woman Do Bong Soon” introduces Do Bong Soon (Park Bo Young), descended from women possessing superhuman strength, who becomes bodyguard for endangered chaebol heir Ahn Min Hyeok (Park Hyung Sik), CEO of gaming company Ainsoft. “Healer” tracks night courier Seo Jung Hoo (Ji Chang Wook), known as “Healer,” assigned to locate and protect rookie reporter Chae Young Shin (Park Min Young).

Coming-of-Age and Ensemble Stories

Neighborhood and School Narratives

“Reply 1997” tracks high school friends navigating adulthood and first love, centered on Sung Shi Won (Jung Eun Ji) and Yoon Yoon Jae (Seo In Guk). “Reply 1988,” the franchise’s third installment, offers humorous stories of five families in the Ssangmun neighborhood during 1988, focusing on high schoolers Sung Deok Sun (Hyeri), Kim Jung Hwan (Ryu Jun Yeol), Choi Taek (Park Bo Gum), Sung Sun Woo (Ko Kyung Pyo), and Ryu Dong Ryong (Lee Dong Hwi).

“Family By Choice,” remaking C-drama “Go Ahead,” reunites three characters after 10 years. Kim San Ha (Hwang In Youp), Yoon Ju Won (Jung Chaeyeon), and Kang Hae Jun (Bae Hyeon Seong), unrelated by blood but raised as family, explore how their youthful bond has evolved. “Fight My Way” follows high school friends Ko Dong Man (Park Seo Joon), Choi Ae Ra (Kim Ji Won), Kim Joo Man (Ahn Jae Hong), and Baek Seol Hee (Song Ha Yoon) balancing ambitious dreams with adult realities, as Dong Man and Ae Ra’s friendship transforms into romance.

Elite Schools and Social Class

“Boys Over Flowers” begins when Geum Jan Di (Ku Hye Sun), admitted to Shinhwa High School by scholarship, meets the F4: leader Gu Jun Pyo (Lee Min Ho), Yoon Ji Hoo (Kim Hyun Joong), So Yi Jung (Kim Bum), and Song Woo Bin (Kim Joon). “Heirs” examines romance between chaebol heir Kim Tan (Lee Min Ho) and housekeeper’s daughter Cha Eun Sang (Park Shin Hye). “SKY Castle” depicts residents of a luxury condo obsessed with securing their children’s top-university admission.

Additional Standout Titles

“Another Miss Oh” follows Oh Hae Young (Seo Hyun Jin), who has suffered lifelong confusion from another Oh Hae Young (Jeon Hye Bin) considered more attractive and accomplished. Park Do Kyung (Eric Mun), gifted with precognition, entangles with both women. “Encounter” reunites Cha Soo Hyun (Song Hye Kyo), born into privilege yet denied agency, with carefree spirit Kim Jin Hyuk (Park Bo Gum), launching poignant romance. “The Moon Embracing the Sun” follows Crown Prince Lee Hwon (Kim Soo Hyun) and intended queen Yeon Woo (Han Ga In) through tragedy, as Lee Hwon later meets mysterious shaman Wol, portrayed by the same actress, bearing uncanny resemblance to his lost love. “Semantic Error” presents a campus romance between introverted computer science major Chu Sang Woo (Jaechan) and popular design student Jang Jae Young (Park Seo Ham).