Eun Ji-ho

Eun Ji-ho is one of the Four Heavenly Kings of Ji Jon Middle School. He is the stuck-up rich guy archetype. Dani believes that he might be the male lead of the web novel world she's in.

Ji-ho is the chaebol(heir) of Haneul Group. He has always gone to school in a limousine, since elementary, so he is slightly sheltered. He is rich and owns a five-star hotel called Juno Hotel. He is also incredibly smart and often places first in school, when he isn't losing first place to Yeo-ryeong or Chun-young.

Appearance
Ji-ho has silver hair and eyelashes, with dark gray eyes, he also has an elegant jawline and a slightly pale complexion. He assumes a polite and elegant attitude so he often looks "angelic".(not really true)

He dresses like a rich boy: that is, his clothes are always well put together and distinguished looking.

Personality
Although Ji-ho acts elegant and refined, in reality he is an asshole type. With his friends, his facade falls away and he becomes more casual. He swears, makes fun of and teases his friends, and has a sarcastic sense of humour.

But Ji-ho is also perceptive and respectful as a person and friend. He respects people's boundaries and watches over those he cares for from a distance.

He is rational-minded and calm. Thus, he is not given to impulsive decisions, but sometimes makes emotionally-charged decisions when he is frustrated.

Woo Ju-in
His childhood friend Ju-in is his closest friend. In middle-school, they would go to school together. They have a typical bro friendship.

Ham Dan-i
He finds Ham Dan-i interesting and curious, because of how she was openly fighting with Yeoryeong (i.e. trying to ignore and avoid her) at the beginning of middle school. At the start, he assumes negative things about Dani. But when they become friends, likely through Yeoryeong and Ju-in, he becomes more close and casual with her. Ji-ho often goes over to Dan-i's house. Her parents love him and think he's a perfect gentleman; his mother even lets Ji-ho enter Dani's room to wake her. He watches over Dani and is quietly perceptive of her feelings of anxiety. He often teases and jokes around with Dani.

In the second year of middle school, Ji-ho develops feelings for Dani and tries to confess to her. But she refuses to believe that he could have interest in her and thinks he is joking. He continues to have romantic feelings for her, but seeing how anxious she became after he confesses, he decides to take back his confession and only crush on her in secret.

In an incident where Dan-i was framed to have started a Yeoryeong anti-cafe, Ji-ho and Ju-in played a big part in finding out who the real culprit was. In this arc, Ji-ho hugs Dan-i as means to comfort her in front of her apartment's elevator, Dan-i took it as a joke and laughed at his actions. When Dan-i asked why he did so because it would be embarrassing if someone actually saw them, Ji-ho revealed that he could no longer hold back his feelings, but just before he could finish his words, the elevator door closed. Ji-ho then blushed so hard afterwards.

Ban Yeo-ryeong
Ji-ho and Yeoryeong have a rivalry relationship from the very start. Even after they become friends, their friendship is characterized by constant arguments and snarking. However, despite it seeming like they are enemies, Ji-ho cares a lot about Yeoryeong as a friend, and protects her from bullies.

Yoo Chun-young

Being in the same class for three consecutive years in middle school and hanging out with the same group of friends, Ji-ho regarded Chunyoung as a good friend who he cares about. One day, when Ju-in found a USB that contains the files from Dan-i's old phone, he suggested to watch the videos that they took in middle school together. In the video, Ji-ho witnessed Chunyoung looking at Dan-i with loving eyes, and immediately realized that he has feelings for Dan-i.

In the first school trip they went to as high school students, Ji-ho called Chunyoung out to talk about his feelings for Dan-i and told him that he should prepare his heart because he will have to go through a lot of hardships while liking her. He also told his personal experience on how he confessed to her which she regarded as a joke. Ji-ho then made a resolution that if the two people will end up together, he will forget about his feelings for Dan-i and move on.

Kwon Eun-hyung

Ji-ho views Eunhyung as the mom of the group, and a person that he actually respects. In fact, it is shown that Eunhyung scares him a bit, to the point where he named Eunhyung's contact number "Scary Eun-hyung".

Lee Ru-da

In Ji-ho's mind, Ru-da is a sneaky, detestable guy who pops out of nowhere into Dan-i's life and started to flirt with her. Ji-ho realized that Ru-da also have feelings for Dan-i and is annoyed with the fact that Ru-da actually made bold moves at her such as lending his shoulder when Dan-i dozed off, princess-carry her in the school trip, and even kissed her cheek in front of all the first-year students. But he took comfort in the fact that Dan-i doesn't view the Four Heavenly Kings and Lee Ru-da as a love interest.