A dispute about love and obsession quietly unfolds. Su Wan, an introverted and sensitive female college student, fell in love at first sight with the elegant and gentle associate professor Lu Shiyan in a classic literature class. This admiration gradually turned into paranoid possessiveness, turning her from a quiet follower to a "thorn rose" with hidden thorns. Lin Weiwei, the president of the student union, approached Lu Shiyan in a gentle and considerate disguise. Her vanity and calculation became the trigger that ignited Su Wan's paranoia.