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Series

Weak Hero

20221h 24m8.6 / 102 seasons

With the aid of unexpected friends, a gifted but introverted student confronts bullies and violent foes — unaware of how dangerous his world will become.

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Available in US

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Season guide

Class 1

8 episodes available

Episode 1: Episode 1

44m

Si-eun is a model student who is always at the top of his school. Because he only cares about his studies, he has no friends at school. Young-bin, a boy in Si-eun's class, is annoyed by Si-eun's cynical attitude. On a mock test day, Young-bin decides to use Bum-seok, a new student, to mess with Si-eun's test.

Episode 2: Episode 2

43m

Young-bin wants revenge on Si-eun for putting him in the hospital by hiring a couple of thugs he knows. Meanwhile, Si-eun gets closer to Soo-ho and becomes friends. Later, Soo-ho comes to Si-eun's rescue when he gets confronted by Young-bin and his thugs.

Episode 3: Episode 3

41m

When Gil-su sees his boys beaten up to a pulp, he gets furious and asks who did it. Young-bin lures Si-eun, Bum-seok, and Soo-ho and takes them to Gil-su. Gil-su threatens them to bring him 15 million won in three days. Si-eun asks Young for advice and information on Gil-su.

On screen

Cast & Characters

Park Ji-hoon

Yeon Si-eun

Choi Hyun-wook

Ahn Su-ho

Hong Kyung

Oh Beom-seok

Ryeoun

Park Hu-min

Choi Min-yeong

Seo Jun-tae

Yoo Su-bin

Choi Hyo-man

Cha Woo-min

Kang Woo-young

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Episode 4: Episode 4

38m

Si-eun sees Soo-ho's blood on the floor and calls Young-yi for help. Gil-su tells Seok-dae to come, so Young-yi follows him with her GPS tracking app on. Meanwhile, Soo-ho and Bum-seok are tied up by Gil-su's gang.

Episode 5: Episode 5

39m

While hanging out in a karaoke room with his friends, Bum-seok runs into the bullies from his previous school. Soo-ho makes them apologize, but Bum-seok isn't happy with Soo-ho ordering him around. Si-eun becomes more worried about Bum-seok who seems to be getting more unstable.

Episode 6: Episode 6

41m

Bum-seok befriends with Jeong-chan and Tae-hoon, he reeks of alcohol every day. Si-eun thinks Bum-seok is being used by Jeong-chan and Tae-hoon. He also thinks Bum-seok is behaving that way because he is lonely. Si-eun wants to help Bum-seok, but Soo-ho thinks he's done enough. Meanwhile, Bum-seok pays Woo-young to beat Soo-ho on his birthday.

Episode 7: Episode 7

37m

Si-eun gets beaten up by the guys Bum-seok paid to beat up Soo-ho. Si-eun gets seriously injured, but he doesn't tell Soo-ho about it to protect Bum-seok. Soo-ho finds out later and decides to confront Bum-seok. Bum-seok pays Woo-young again to beat up Soo-ho.

Episode 8: Episode 8

43m

Si-eun and Young-yi get anxious as they can't get hold of Soo-ho for too long. After Si-eun finishes his exams, he hears the shocking news. Meanwhile, Bum-seok's dad tries to make Bum-seok go study abroad.

Bae Na-ra

Na Baek-jin

Lee Min-jae

Go Hyun-tak

Lee Jun-young

Geum Seong-je

Cha Se-jin

Basketball club member 3