Mysterious Beginning of Seo Yi-su in Sweet Home Season 3
Sweet Home season 3 explores the roots of Seo Yi-su, the enigmatic monster child who is central in the developing events. Introduced in season 2 as a strong being able to transform others into monsters only through touch, Yi-su, the daughter of Yi-kyung, Season three shows her complicated relationship with her mother and how she came to have these skills.
Monster Child of Sweet Home: Daughter of Yi-kyung
On the brink of marriage, the ferocious firefighter, Yi-kyung, finds herself caught in the terrible outbreak. Before the first monster attack, her fiancé Nam Sang-won disappeared; Yi-kyung was left to negotiate the anarchy by herself. She looks for him throughout the show, finally learning of his participation in government research meant to find a cure for the monster infection. Yi-kyung finds she is pregnant as the first season ends, which drives her search for Sang-won even more.
Seo Yi-su: A Curseful Child's Birth
Dramatically speaking, Yi-kyung's pregnancy advances at a concerning speed and ends in the birth of her daughter soon after learning of her condition. Sang-won's manipulation directly causes this sped-up of gestation. While Yi-kyung was unconscious, Sang-won, endowed with own terrible powers, intervened with the fetus, bestowing upon the unborn child remarkable ability.
Rapid Growth and Monster Powers of Yi-su
Yi-su's inherited terrible powers directly account for her explosive development. She not only survives but also goes through a metamorphosis from a newborn into a young child when she is attacked by people trying to profit from her talents. This metamorphosis gives her a degree of awareness of her abilities and the hazards all around. The time jump in season 2 makes Yi-su's age somewhat unclear; but, the flashbacks in season 3 help to clear her chronology.
Knowing Yi-su's Special Capacity
Among Sweet Home's most compelling characters is Yi-su. She is not a normal human, nor a standard "special infectee" or "neo-human" like those usually discussed in the series. Her unique skills set her apart and define Sang-won's ultimate objective.
Yi-su's Changing Touch
Yi-su has the amazing power to spread infection by just touching other people. This power deviates from the known ways people become monsters, such the natural development of the curse during rage or infection through a monster's bite. Because of this special ability, Yi-su is a dangerous force able to disseminate the infection without physical damage.
Telepathic Connection: Getting Others' Views
The capacity of Yi-su goes beyond simple physical control. She shows psych powers, which lets her hear other people's ideas. This telepathic link gives her insight into the minds of others, so arming her with a tool for understanding and situational manipulation.
Mind control: Infected puppet master
Another element of Yi-su's great authority is her control over people she infects. Her capacity to control the actions of the infected makes her a powerful weapon able to plan events to suit her.
Yi-kyung and Yi-su's complicated relationship
There is not a perfect bond between Yi-kyung and her daughter. Their relationship had grown tense by the end of season 2. Mother and daughter are divided by Yi-su's abilities and the fear she inspires in others.
Yi-su's Protective Instinct
Though she harbors resentment, Yi-su shows her mother great care. Yi-su uses her abilities to transform her mother into a monster, so guaranteeing her survival when Yi-kyung finds peril. But this deed is driven more by a need to safeguard her own survival than by love.
The Burden of Prejudice: Yi-su
Yi-su carries prejudice and ostracism's weight. Those close to her—including her own mother, who worries about her abilities—see her as a monster. Her perspective is shaped by this continuous anxiety and rejection, which makes her despise of mankind.
Obsession of Nam Sang-won toward His Daughter
The main enemy of the show, Sang-won, knew Yi-kyung was pregnant even from their lab meeting. He marks the fetus with his own powers so he may follow the child's location. His quest of Yi-su is driven by an obsession for power rather than by parental love.
The Desperate Search by Sang-won
Finding and using Yi-su's exceptional abilities is Sang-won's aim. Believing her skills exceed those of any other "special infectee," or "neo-human," he wants her to be his new host. His scheme centers on turning his daughter into a tool for his own terrible nature.
The sad end of Seo Yi-su
The death of Yi-kyung at the hands of Sang-won reminds us tragically of the peril Yi-su runs. In a heartbreaking turn of events, Sang-won takes over Yi-su's body in the last season, so enhancing his power and enabling grand scale manipulation of others. Though Yi-su fights desperately to save her, her injuries finally cause her to die in Hyun-su's arms.
The path Yi-su travels in Sweet Home acts as a warning about the perils of prejudice and the results of tampering with exceptional ability. Her narrative emphasizes the difficult subjects of parental love, social anxiety, and the fight for survival in a society run under terrible powers. Her arc ends tragically, but she unquestionably shapes the course of the show.
