Ho-Bin Yoo

The protagonist of this work is a second-year high school student. He is short, not even reaching 170cm in height, and was bullied by Ssamdak and others at school. He is a filial son who works multiple part-time jobs to earn living expenses in place of his hospitalized mother.

After a fight video with Ji-Hyeok Woo, he starts a "Self-Taught Fighting" channel and learns martial arts techniques by watching videos of Ssamdak. Later, he establishes a group of new YouTubers called "Ho-Bin Yoo Company" and becomes its president.

He is liked by many women, including Ga-Eul and Ru-Mi, but is clueless about romance, including his relationship with Bo-Mi Choi, which is mutual.

During fights, he shouts out the names of techniques taught by Ssamdak, such as "How to not feel pain when punched!"

He responds to viewers' requests like "Get punched by Tae-Hoon Seong for 3 minutes and get money," and becomes energized just by hearing the notification sound of donations, even if he gets injured, showing his greed for money. However, he has a strong sense of justice and cannot overlook the misdeeds of people like Ji-Hyeok Woo or others.