Teach You a Lesson
2026 · Action & adventure · Drama
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TV series / 2020
Start-Up
Episode directors
Oh Choong-hwan
Young entrepreneurs aspiring to launch virtual dreams into reality compete for success and love in the cutthroat world of Korea's high-tech industry.
The story
Young entrepreneurs aspiring to launch virtual dreams into reality compete for success and love in the cutthroat world of Korea's high-tech industry.
The seasons
Season 1
Start-Up
Season details
Young entrepreneurs aspiring to launch virtual dreams into reality compete for success and love in the cutthroat world of Korea's high-tech industry.
Cast
SuzySeo Dal-mi
Nam Joo-hyukNam Do-san
Kim Seon-hoHan Ji-pyeong
Kang Han-naWon In-jae
Kim Hae-sookChoi Won-deok
Kim Do-wanKim Yong-san
Kim Won-haeNam Seong-hwan
Song Seon-miCha Ah-hyun
Yoo Su-binLee Chul-san
Seo Yi-sookYoon Seon-hak
Kim Hee-jungPark Geum-jeong
Stephanie LeeJeong Sa-ha
See more cast
Cho Tae-kwanAlex Kwon
Uhm Hyo-seopWon Doo-jung
Yeo Jin-gooJang Young-sil (voice)
Lee Min-ryungJang Yi-soo
Song Ho-suLee Dae-myung
Jang Se-hyunNam Cheon-ho
Kim Min-seokPark Dong-cheon
Kang You-seokShin Hyeon
Joo Bo-youngShin Jeong
Moon Dong-hyeokWon Sang-su
Heo Jung-eunSeo Dal-mi (young)
Kim Kang-hoonNam Do-san (young)
Jo Ah-raDeputy Manager Jung
Kim Ju-hunSeo Cheong-myeong
Bret Allan Lindquist2STO employee
Kim Ji-inSeo-hyun
Lee ReWon In-jae (young)
Nam Da-reumHan Ji-pyeong (young)
Lee Da-haeStart-up CEO
Jeon Jun-woo2STO employee
Jeong Joon-hwanHackathon participant
Yoon Seo-hyunLucca The Tea HR manager
Oh Young-meeStudent's mother
Park Chan-hoPark Chan-ho
Lee Dong-heeOh Yeon-ho
Yang Dae-hyeokReporter Choi Yang-won
Shin Dong-hoonInvestor
Ji Seong-geunBus passenger
Ahn Su-binLee Min-ji
Park Choong-seonIl Cheung Construction & Trading manager
Park Young-sooReal estate agent
Yu Mi-ranReal estate agent
Kim Jong-hoSH Venture Capital employee
Choi Yun-seolHotel waitress
Bae Bo-ramLucca The Tea barista
Jung Ji-hyeonLucca The Tea barista
Yoo Seung-ilCheon-ho's father
Hong Boo-hyangCheon-ho's mother
Kwon Ki-juDeliveryman
Kwon Ban-seokInvestor
ItaInvestor
Lee Chang-subInvestor
Ko Han-minKo Eun-hyun
Kim Chae-hyunHackathon CEO
Bae Yu-riHackathon CEO
Jang Young-hyeonHackathon CEO
Kim Seong-yongUniversity professor
Seol Chang-heeCheol-san's co-worker
Park Seong-chanDoctor
Moon Se-yoonSecurity guard
Im Seong-miBlind woman
Gu Bon-jinDetective
Bae Hae-sunLee Hye-won
Oh Kyu-taekPark cleaning man
An Young-miWaitress
Lee Bo-youngWoman at pub
Jung Wook-jinKim Dong-su
Kim Ji-suFlight attendant
Jang Hae-songInsurance salesman
Lim Seung-beomInvestor
Jeon Yeo-jinInvestor
Park Sang-hyeonMagazine staff
Kim Sung-yeolPhotographer
Hong Seong-gwanStart-up guy
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