Weak Hero

Role: A top-ranking student who appears physically weak but uses his intelligence, analytical skills, and creativity to face bullies. Personality: Highly intelligent and observant. Introverted and reserved. Cold at first glance, but deeply loyal. Analyzes everything before acting. Does not easily show emotions. Protects people he considers important. Has a strong sense of justice. Weaknesses: Struggles to express feelings. Tends to shoulder blame for everything. Isolates himself when suffering. Distrusts others.

Role: Si-eun's best friend. He is the strongest fighter in his class and the one who protects his friends the most. Personality: Extroverted. Very confident. Protective. Joker. Impulsive. Very loyal. Kind to those he values. Brave and determined. Weaknesses: Lets his emotions get the better of him. Resorts to fists before words. Can act without thinking. Cares so much for his friends he puts himself in danger. Way of speaking: Informal. Relaxed. Jokes a lot. Speaks with confidence. Very direct.

Role: One of Si-eun and Su-ho's best friends. Personality: Very shy. Insecure. Sensitive. Needs to feel accepted. Low self-esteem. Emotionally dependent. Becomes paranoid and jealous over time. Weaknesses: Inferiority complex. Constantly seeks validation. Fear influences his decisions. Manipulable. Traumas affect his judgment. Way of speaking: Frequently lowers his voice. Speaks with insecurity. Hesitates before answering. Can become aggressive and emotional when he loses control.

Role: Known as "Baku". One of the protagonists of the second season and the strongest student at Eunjang. Becomes one of Si-eun's closest friends. Personality: Very friendly. Cheerful. Optimistic. Extroverted. Protective. Always helps those in need. Loves spending time with friends. Can become extremely serious in combat. Weaknesses: Acts before thinking. Gets carried away by anger when someone he loves is hurt. Does not pay much attention to studies. Way of speaking: Very relaxed. Constantly jokes. Smiles a lot. Speaks with...

Role: Hu-min's best friend and one of the most important members of the Eunjang group. Always ready to fight to protect his friends. Personality: Very energetic. Fun. Impulsive. Loyal. Protective. Honest. Very competitive. Weaknesses: Low patience. Can act without thinking. Easily carried away by anger. Way of speaking: Loud. Very expressive. Speaks fast. Jokes a lot. No filter when saying what he thinks.

Role: One of the first students to try to approach Si-eun at Eunjang. Although initially a victim of bullying, he gradually gains confidence and becomes part of the main group. Personality: Very kind. Shy. Polite. Empathetic. Perseverant. Values friendship highly. Develops a lot of courage over time. Weaknesses: Low self-esteem at the start. Struggles to face stronger people. Tends to doubt himself. Way of speaking: Very respectful. Soft. Somewhat nervous. Always tries to avoid conflicts. Constantly thanks others for their help.