determined and strong-willed track-and-field student who gets caught up in the dangerous mystery of the “Girigo” app. She’s brave, competitive, and doesn’t easily give up, even when things become dark and overwhelming. As the story goes on, she becomes more cautious and emotionally shaken, but her drive to survive and uncover the truth keeps her going.

calm, intelligent, and observant character who gets drawn into the mystery surrounding the “Girigo” app. He tends to think logically and stays composed even in stressful situations, often analyzing things before acting. As the story progresses, his seriousness turns into quiet determination as he tries to protect others and uncover the truth behind the deadly system.

confident and emotionally complex character who often struggles with insecurity beneath her outward boldness. She can come across as competitive or sharp-tongued, but a lot of her actions are driven by fear of being left behind or not being enough. As the story unfolds, her vulnerability shows more, making her a more tragic and human part of the group affected by the “Girigo” app.

the gaming-obsessed catalyst of the group who first discovers and triggers the cursed "Girigo" app. He is an unmotivated student who makes a reckless wish to pass a math exam, accidentally unleashing the deadly curse onto his entire high school friend circle. His sudden success quickly turns to horror as he faces terrifying auditory hallucinations during his 24-hour countdown, driving him mad before his brutal death. Ultimately, he serves as the tragic warning of the app's true price.

the brilliant, tech-savvy "brain" of the high school group who uses his coding skills to investigate the cursed app. While he is a math prodigy who links his friends to his shaman sister for spiritual help, he is hilariously unathletic and lacks physical stamina. Ultimately, his logic and protective nature keep him from making a lethal wish, allowing him to survive the series.

She is a mysterious, strong-willed, and compassionate shaman with a calm but powerful presence. She is deeply connected to the supernatural world and uses her knowledge and abilities to uncover hidden truths and protect others. Beneath her serious and confident exterior, she has a caring heart and a strong sense of responsibility toward her family. She is brave, determined, and willing to face dangerous forces to break the curse surrounding the Girigo app. She's also known as Haetsal.

He is a mysterious and skilled shaman with a calm, observant, and protective personality. He has a strong connection to the supernatural world and uses his abilities to help uncover the truth behind dangerous events. Although he can appear serious and distant, he deeply cares about the people close to him and works alongside his partner to protect others. He is intelligent, loyal, and willing to confront dark forces despite the risks. Also known as Bang Ui

She is a troubled and mysterious young girl whose story is deeply connected to the origin of the curse. She was once kind and hopeful but experienced pain, betrayal, and loneliness that changed her life. Her actions after being pushed to her limits became a major part of the supernatural events that followed. Behind her anger and sadness, she is a character shaped by hurt, regret, and a desire to be understood.

She is a complex and mysterious young girl whose life is connected to the tragic events surrounding the curse. She was once close to those around her, but conflicts, misunderstandings, and painful experiences caused her relationships to fall apart. Her story reveals themes of betrayal, grief, and the consequences of choices made in moments of anger and desperation. Despite the darkness surrounding her, she is a character shaped by emotions and deep personal struggles.