Delivery worker Samuel Flynn tries to brighten his day by asking for a five-star review to buy a gift for his girlfriend. Suddenly, demonic beasts appear, causing panic as they prey on human fear and suffering. Samuel explains that only warriors called Ascenders, who awaken Beast Souls, can fight these creatures and have become society's elite. Those like Samuel, who failed to awaken, are left vulnerable and forced to do manual labor. As a terrifying Beast God aura emerges, Samuel faces a deadly encounter, desperate for help while his fate hangs in the balance.