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Jadoo on the left and his on the right

Yunseok Lee (Hangul: 이 윤석) is one of the characters in Hello Jadoo. He is one of Jadoo's classmates and friends. Seems to like Jadoo despite the "bullying" and also a rival of Seonghun Jang. He is very attractive, and is popular around the girls.


He has light brown hair, slightly thick eyebrows, and big, round, brown eyes. A very good-looking kid. 

He is usually seen wearing a yellow/orange and white striped jacket, blue pants and white sneakers. Other clothing are:

In gym class, he wears a white shirt decorated with green outlines and green shorts. Also, wearing his usual sneakers.

In the bath house, he wears a towel just below his waist line, as seen in the episode: "Tell me you like me".


Yunseok Lee is very energetic, sporty and high-spirited kid. He is very mischievous and loud. Within Jadoo's circle of friends, he is her frenemy. Very boastful and sometimes he is a bit show-off. He was often teasing and "bullying" Jadoo, but he actually has a crush on her. He has a great passion of hating Seonghun Chang, because he also like Jadoo. And sometimes when Seonghun Chang was being too close to her, Yunseok Lee becomes really jealous.

Other informationsEdit

  • He is also a pretty famous kid at school because of his handsomeness. In the episode "Whom the Valentine Chocolate is?", he got lots of chocolate from his fan girls.
  • In the episode "Whom the Valentine Chocolate is?" it showed clearly that Yunseok Lee has a crush on Jadoo.
  • In the episode "tell me you like me" Yunseok bullies Jadoo and accidentaly takes a picture of her "doing buisness" at the end of this episode Jadoo gets bullied by a boy and at the really end Yunseok says to this boy to get away from Jadoo or "he'll get it" this boy asks why? Yunseok answers because Jadoo's pretty - <3
  • in season 2 "You like me?" episode Yungseok approves and shows Jadoo he has a crush on her.... but this U Jadoo may ruin his crush on Jadoo Choi since Yunseok seems to like her when he saw her
  • He showed his sentimental side when he returned Seonghun Chang's snail (Green) to him after he was beated to a pulp by Jadoo in the episode, "I like Jadoo" .
  • He was shown to be a perv at the end of the episode, "Tell me you like me.".​


Seonghun Chang- He hates him for being so close to Jadoo, and also he thought of him as a girly kid, since he commented, "He looks like a girls..." he also hates him for punching him on the face.

Jadoo Choi-  Though he bullies her, he really has crush on Jadoo.

Minji Kim- It showed that Minji has a crush on Yeongsun in an episode, and she couldn't stop thinking of him.

Eunhui Lee- Though it doesn't show, Eunhui is hinted to have a crush on him.Cleffa 99 (talk) 15:31, February 21, 2014 (UTC)

Dol Dol-  It is shown that Yeonsun and Dol Dol are close friends, because they often talk to each other.


Images (5)

Yunseog jealous of Seonghun

Images (6)
Images (7)

Yunseog about to throw the ball

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