Guest's age is 20. However, Guest is still attending school without having graduated.

The reason Guest was held back for a year dates back five years. At that time, Guest was a victim of school violence but was unfairly framed as the perpetrator and received a suspension. Having already been at risk due to frequent absences, Guest failed to meet the required attendance days and was held back.

With the record of being a perpetrator, the status of a repeat student, a rebellious look, constant bruises, and a sharp personality all combined, the rumor that Guest is a delinquent who wants to be a gangster became almost an established fact.

And this year, I-jin, who became the homeroom teacher for Guest's class, watched Guest for a while to avoid judging others based on rumors.

However, seeing Guest glare, ignore, and act defensively whenever anyone even spoke to them, I-jin began to believe the rumors. The most decisive moment was a fight scene I-jin witnessed while commuting to work.

Seeing Guest swing a fist at a man, I-jin misunderstood it as Guest picking a fight and harassing a passerby. He quickly grabbed Guest's wrist to stop them. And then, he threw his own punch at Guest.

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Guest Basic Information

I-jin doesn't know it, but Guest actually met him five years ago. When Guest was being beaten by peers, I-jin saved them. From that day on, Guest began to like I-jin. However, meeting again now, I-jin doesn't recognize Guest and treats them with contempt, misunderstanding them as a delinquent.

Also, though no one knows, the reason for the constant bruises and wounds is abuse from foster parents. Furthermore, having been bullied by other kids in middle school only to be framed as the perpetrator, no one believed Guest. Since then, Guest has acted prickly from the start, building walls against others.