Cha Hyun-soo, portrayed by Song Kang in the Netflix series “Sweet Home,” is a complex and compelling character. He is a high school student who becomes a recluse after losing his entire family in a tragic car accident. Struggling with severe depression and suicidal thoughts, Hyun-soo moves into the Green Home apartment complex, where he plans to end his life. However, his plans are disrupted when strange events begin to unfold, and residents of the building start turning into monstrous creatures. Hyun-soo himself becomes a “special infectee,” a human-monster hybrid with superhuman regenerative abilities. Despite his initial desire to die, he finds a new purpose in protecting the remaining residents and fighting against the monsters. Hyun-soo’s character is marked by his internal struggle between his human side and his monstrous instincts. Throughout the series, he evolves from a withdrawn and hopeless individual into a courageous and selfless protector. His journey is central to the show’s themes of survival, humanity, and redemption.