A mother with a heart of gold navigates the cutthroat world of private education when her daughter tries to join a celebrity math instructor’s class.

Episodes of this season

Jeon Do-yeon
Nam Haeng-seon

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Jung Kyung-ho
Choi Chi-yeol

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Lee Bong-ryeon
Kim Yeong-ju

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Oh Eui-sik
Nam Jae-woo

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Shin Jae-ha
Ji Dong-hui

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Roh Yoon-seo
Nam Hae-e

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Jang Young-nam
Jang Seo-jin

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Kim Sun-young
Cho Su-hui

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Hwang Bo-ra
Lee Mi-ok

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Heo Jeong-do
Kang Jun-sang

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Lee Chae-min
Lee Sun-jae

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Kang Na-eon
Bang Su-a

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Ryu Da-in
Jang Dan-ji

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Lee Min-jae
Seo Geon-hu

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Kim Tae-jeong
Lee Hui-jae

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Ji Il-ju
Jin I-sang

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Lee Do-hye
Jeong Su-hyeon

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Kim Da-huin
Jeon Jong-ryeol

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Lee Ji-hae
Director Jeong

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Park Hui-eun
Jin-su's mother

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Choi Hee-jin
Young-min's mother

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Yoo Jun
Lee Young-min

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Jeong Han-seol
Bae Jeong-su

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Hwang Jae-yeol
Detective Song

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Jang Tae-min
Detective

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Go Ae-ri
Jo Ga-yeon

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Lee A-jin
Lee Hyo-won

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