The First Man (TV series)


The First Man is an ongoing South Korean television series written by and Ahn Jin-young, directed by, and starring Hahm Eun-jung, Oh Hyun-kyung, Yoon Sun-woo, Park Geon-il, and Kim Min-seol. The series follows the intertwined lives of two women driven by deadly desires, one seeking vengeance, and the other fueled by selfish ambition. It premiered on MBC TV on December 15, 2025, and airs every Monday to Friday at 19:05.
WWW program.imbc.com/Thefirst...

Synopsis

In 1995, twin sisters Oh Jang-mi and Ma Seo-rin were born. One of them was forcibly taken by Chae Hwa-young from their birth mother, Jeong Suk-hee. The child was later brought into Chairman Ma's house, where Hwa-young claimed her as her own child with Dong-seok. Ultimately, she joined the Chairman Ma's family and fulfilled her desire to enter the Dream Group. As the twins grow up, they lead vastly different lives, one is the spirited and righteous, and the other is a spoiled heiress. When the two brothers, Kang Baek-ho and Kang Jun-ho, get entangled with the twins, romance, rivalry, and secrets slowly unfold.
Jang-mi, who uncovers the truth, embarks on a journey of revenge by using Seo-rin's identity to bring down the evil woman, Hwa-young, and make her be punished for her wrongdoings.

Cast and characters

Main

  1. Oh Jang-mi: The older of the twins who is a warm-hearted and principled young woman with a culinary dream, working hard to open her own restaurant. She inherited her mother's culinary skills. As she uncovers the truth and secrets about what happened to her mother before, she's determined to take revenge.
  2. Ma Seo-rin: The younger of the twins, who grew up as the spoiled and troublesome granddaughter of the Dream Group, is a reckless woman who fears nothing in life and has everything she wants. She was separated from her birth mother and twin at birth and raised by Hwa-young as her daughter, unaware of the hidden truth.

Supporting

Jang-mi's family

  • as Jeong Suk-hee
  • Kim Hak-seon as Oh Bok-gil
  • as Oh Tae-pyeong
  • Jeon A-reum as Oh Tae-sook
  • Kim Ra-hee as Yeon Bo-ra

Chairman Ma's family

Baek-ho's family

Hong-ju's family

  • as Yeom San-wol

Production

Development

Produced by MBC C&I and DK Entertainment and planned by Jang Jae-hoon, the daily drama is directed by, who previously helmed Desperate Mrs. Seonju, and of The Second Husband, and Ahn Ji-young co-wrote the screenplay. The series revolves around a woman driven by desire, who devastates another woman's life to attain her goal, while the other woman seeks revenge by choosing a new path. Director Kang stated that the title 'First Man' could also be called 'First Love'. He aimed to convey that love can help overcome any obstacle or hardship through this series.

Casting

In October 2025, Hahm Eun-jung, Oh Hyun-kyung, Yoon Sun-woo, Park Geon-il, and Kim Min-seol were officially confirmed to star. Additionally, Hahm previously led the KBS2 daily drama Queen's House, and Kim Min-seol, a participant from Single's Inferno season 4, made her leading role debut in the series. The next month, it was announced that Lee Hyo-jung, Jung So-young, Jung Chan, and Lee Jae-hwang had joined the cast.

Release

The First Man was set to premiere on MBC TV in the second half of 2025 and air in an MBC Monday–Friday timeslot. The series was originally scheduled to premiere on December 1, 2025, but was postponed. In November 2025, a script reading was revealed, and it was officially confirmed to premiere on December 15. With 121 episodes, the series is slated to end in June 2026.