A Green Home resident whose child, possessing special powers, becomes a significant part of the story in Season 3 as the group faces new challenges and explores the origins of the monsters.
They maintain a deep bond centered on saving her from monstrous transformation and preserving their shared humanity.
In episode 1, Hyun-su gives it his all to bring Yi-kyung’s humanity back, and in episode 4, she contemplates her future with him.
She serves as Hyun-su's emotional anchor and primary motivation to retain his humanity amid the chaos.
In episode 3, Yi-kyung discovers the antagonist's true motive, and in episode 4, she contemplates a life away from him with Hyun-su.
Achieved high strategic synergy, with plans and actions perfectly complementing each other.
S1E4-S3E8 demonstrates how Eun-hyeok's plans and Yi-kyung's actions consistently align to overcome obstacles.
Served as emotional anchors for each other during intense internal and external crises.
S3E2-S3E6 highlights Eun-yu's efforts to wake him up and Yi-kyung's humanity struggle, showing deep emotional support.
Represent opposing survival philosophies: instinct versus humanity.
S1E2 vs S1E6 vs S3E1 highlights Sang-wook's instinct-driven actions versus Yi-kyung's search for human connection and answers.
Yi-kyung aligns with Eun-hyeok's group to pool resources and survive the building's takeover.
Episode 8 notes Yi-kyung's return to Green Home, where she rejoins Eun-hyeok's leadership structure after her solo mission.
Yi-kyung's investigative goals contrast with Sang-wook's destructive momentum, creating narrative opposition.
Episode 6 shows Yi-kyung seeking answers about the outbreak, while episode 5 emphasizes Sang-wook's relentless drive, placing them on opposing sides o...
Explore the full interactive character relationship map of Sweet Home