Mega Monster
South Korean television production company known for scripted series made for broadcasters and digital platforms.
Last updated August 25, 2026
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Overview
Mega Monster is a South Korean television production company and a subsidiary of Kakao Entertainment. The company was established in 2014 under the name Story Plant by television producers Kim Yang and Koo Bon-geun. Its early development was connected to CJ E&M, now CJ ENM, which later acquired the company. Story Plant's initial productions included the tvN drama Heart to Heart, the 100-episode series A Bird That Doesn't Sing, the web series We Broke Up, and the MBC family drama Happy Home. These projects established the company as a producer working across conventional broadcast television and emerging web-based distribution. The company changed ownership and direction in 2017. On May 10, LOEN Entertainment, the Kakao subsidiary now known as Kakao Entertainment, acquired Story Plant from CJ E&M along with distribution and licensing rights related to the company's productions. The financial terms were not disclosed. Following the transaction, KakaoPage's predecessor Podotree and CJ Group subsidiary Studio Dragon made strategic investments, acquiring 21.90% and 10.95% stakes respectively. The two founders left after the ownership change, and Lee Jun-ho, then head of LOEN's Video Content Company, became chief executive. The company also moved its headquarters from Goyang City to Seoul. Its corporate name was formally changed from Story Plant Co., Ltd. to Mega Monster Corporation on July 11, 2017. Mega Monster resumed production under its new name with Children of Nobody, a 32-episode MBC drama that began airing in November 2018. The series received nominations for Best Drama and Best Television Screenplay at the 55th Baeksang Arts Awards, making it the company's first reported Baeksang nomination and one of the few free-to-air-network dramas nominated in those categories that year. Subsequent work included Touch Your Heart, a tvN romantic drama based on a KakaoPage web novel and co-produced with Zium Content, as well as a group of 2020 projects distributed by KBS and SBS. These included Fatal Promise, How to Buy a Friend, and Mom Has an Affair. The company's production model has included adaptations of digital intellectual property, collaboration with broadcasters, and partnerships with other production companies within the Korean media ecosystem. In 2019 Mega Monster entered a three-year cooperation arrangement with Daum Webtoon Company and the KBS Drama Production Group to develop television dramas based on Daum webtoons. It also became a sponsor of the Broadcasting Content Promotion Foundation's Find the Desert's Shooting Star drama screenplay competition, linking its business to the discovery and development of new writing talent. Mega Monster's publicly documented corporate history identifies it as part of the Kakao Entertainment content-production network, with earlier relationships to CJ E&M, Studio Dragon, KakaoPage and other affiliated or strategic partners. Jang Sai-jung, a former Studio Dragon chief financial officer, became president and chief executive officer in August 2020, replacing Lee Jun-ho. Available reference material does not provide a complete current executive roster, financial profile, production catalogue, or confirmed current ownership percentages. Its principal business remains television and related screen-content production.
History
Mega Monster began in November 2014 as Story Plant, founded in Goyang City by television producers Kim Yang and Koo Bon-geun. Koo served as the company's first chief executive officer. The company entered production with Heart to Heart, a 16-episode tvN series that premiered in January 2015 in cooperation with Chorokbaem Media. It followed with A Bird That Doesn't Sing, a 100-episode tvN series, and We Broke Up, a 10-episode web series based on a Naver Webtoon. We Broke Up was distributed through Naver TV and later broadcast on OnStyle. In 2016 the company produced Happy Home, a 51-episode series for MBC TV. These early projects show Story Plant's involvement in both broadcaster-led drama production and adaptations of online intellectual property. CJ E&M acquired Story Plant during this early period. In May 2017, LOEN Entertainment, the Kakao subsidiary that later became part of Kakao Entertainment, acquired Story Plant from CJ E&M together with distribution and licensing rights for its productions. The value of the transaction was not disclosed. The founders left following the acquisition. Lee Jun-ho, who had led LOEN's Video Content Company, became CEO, and the company relocated from Goyang City to Seoul. Podotree, a LOEN sister company later known as KakaoPage, acquired a 21.90% interest as a strategic investor, while Studio Dragon acquired 10.95%. The corporate name was officially changed to Mega Monster Corporation on July 11, 2017. The renamed company returned to television production with Children of Nobody, a 32-episode drama broadcast by MBC beginning in November 2018. Kim Yong-jin, a former SBS and JS Pictures executive who had become Mega Monster's vice-president and chief operating officer, co-executive produced the series with Lee Jun-ho. Children of Nobody was nominated for Best Drama and Best Television Screenplay at the 55th Baeksang Arts Awards in 2019. Those nominations represented the company's first reported recognition at the awards. Mega Monster continued to combine television production with adaptations of digital works. Touch Your Heart, which premiered on tvN in February 2019, was based on a KakaoPage web novel, co-produced with Zium Content, and developed by Studio Dragon. In April 2019, Mega Monster became a sponsor of the Broadcasting Content Promotion Foundation's Find the Desert's Shooting Star drama screenplay competition. In June of the same year, Mega Monster, Daum Webtoon Company and the KBS Drama Production Group signed a memorandum of agreement and understanding for a three-year drama-production collaboration based on Daum webtoons. The first announced project was an adaptation of the webtoon Dead Man's Letter. The company's 2020 output included the 100-episode KBS 2TV daily drama Fatal Promise, the eight-episode KBS 2TV miniseries How to Buy a Friend, and the 120-episode SBS morning drama Mom Has an Affair, co-produced with Studio S. In August 2020, Jang Sai-jung, formerly chief financial officer of Studio Dragon, became president and CEO, replacing Lee Jun-ho. Mega Monster is identified in the available reference material as a subsidiary of Kakao Entertainment. The supplied sources do not establish a complete later production record, current management list, current ownership percentages, or detailed financial information.
- 2020
New chief executive appointed
[1]Jang Sai-jung became president and CEO, replacing Lee Jun-ho.
- 2019
Baeksang nominations
[1]Children of Nobody received nominations for Best Drama and Best Television Screenplay.
- 2018
Children of Nobody marked the renamed company's first production
[1]Children of Nobody aired on MBC as the first production after the management and name change.
- 2017
Kakao predecessor acquired Story Plant
[1]LOEN Entertainment acquired Story Plant from CJ E&M; strategic investments followed from Podotree and Studio Dragon.
- 2017
The Mega Monster name was adopted
[1]Story Plant Co., Ltd. changed its corporate name to Mega Monster Corporation on July 11.
- 2015
First television production premiered
[1]Heart to Heart premiered on tvN as the company's first production.
- 2014
Story Plant was founded
[1]Kim Yang and Koo Bon-geun founded Story Plant in Goyang City on November 20.
Products and positioning
A Kakao Entertainment-affiliated Korean television producer that develops scripted programming for terrestrial broadcasters, cable channels, digital platforms, and adaptations of web-based intellectual property.
Television drama · 2015
Heart to Heart
A 16-episode tvN television series that premiered in January 2015 and was produced in cooperation with Chorokbaem Media. It was the first production associated with Story Plant.
Daily television drama · 2015
A Bird That Doesn't Sing
A 100-episode television series broadcast on tvN in 2015, expanding the company's early work into long-form serialized drama.
Web series · 2015
We Broke Up
A 10-episode web series based on a Naver Webtoon. It was distributed through Naver TV, later aired on OnStyle, and made in association with CJ E&M and YGKPlus.
Television drama · 2016
Happy Home
A 51-episode series broadcast by MBC TV in 2016, representing the company's work in extended family and domestic television drama.
Television drama · 2018
Children of Nobody
A 32-episode MBC drama that became Mega Monster's first production after the Story Plant rebranding and ownership transition. It later received two Baeksang Arts Awards nominations.
Television drama · 2019
Touch Your Heart
A 16-episode tvN series based on a KakaoPage web novel. Mega Monster co-produced it with Zium Content, while Studio Dragon was involved in development.
Daily television drama · 2020
Fatal Promise
A 100-episode daily drama that premiered on KBS 2TV in March 2020. Kim Yong-jin and Sohn Jae-sung served as executive producers.
Television miniseries · 2020
How to Buy a Friend
An eight-episode KBS 2TV miniseries based on a webtoon by Kwon Laad, which had first been published on Daum Webtoon.
Morning television drama · 2020
Mom Has an Affair
A 120-episode SBS morning drama co-produced with Studio S. The story follows a single mother seeking a wealthy man who could become a father figure for her children.
Marketing campaigns
- 2019Find the Desert's Shooting Star Drama Screenplay Competition
South Korea
Mega Monster became a sponsor of the screenplay competition organized by the Broadcasting Content Promotion Foundation, supporting the identification and development of drama-writing talent.
Brand decisions
2020
Appointment of Jang Sai-jungOtherBackground
Mega Monster's management changed after Lee Jun-ho's tenure as chief executive.
Action taken
Former Studio Dragon chief financial officer Jang Sai-jung was appointed president and CEO in August 2020.
Aftermath
The available reference material does not document subsequent leadership changes or the company's later operating results.
2019
Three-year webtoon adaptation partnershipStrategyBackground
Kakao-affiliated content businesses and broadcasters were increasingly developing television projects from digital comics and web fiction.
Action taken
Mega Monster, Daum Webtoon Company and the KBS Drama Production Group signed an agreement to produce dramas based on Daum webtoons over three years.
Aftermath
Dead Man's Letter was identified as the first project under the arrangement, with an intended 2020 broadcast.
2017
Acquisition by LOEN EntertainmentM&ABackground
Story Plant had been acquired by CJ E&M and was operating within a Korean television production network.
Action taken
LOEN Entertainment acquired Story Plant from CJ E&M, including distribution and licensing rights to its productions. The transaction value was not disclosed.
Aftermath
The founders left, Lee Jun-ho became CEO, strategic investors Podotree and Studio Dragon acquired minority stakes, and the company later adopted the Mega Monster name.
2017
Corporate rebranding as Mega MonsterStrategyBackground
The company underwent an ownership and management transition after its acquisition by a Kakao predecessor.
Action taken
Story Plant Co., Ltd. changed its name to Mega Monster Corporation and moved its headquarters from Goyang City to Seoul.
Aftermath
Children of Nobody became the first production released after the new name and management structure.
Sources1 sources
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