Non Zero Sum

Summary:

Seo Hae-young is the only bright spot in the life of Yoon Hae-won, a person with no money, no family, and no future. However, things take a dark turn when her friend, Ko Tae-gyeom, confesses his feelings for her, setting off a series of events that unravel Hae-won’s life. Tae-gyeom begins to demand a relationship through threats, while Hae-young responds with violence in an unpredictable way. Meanwhile, another friend, Joo Hyun-woo, becomes involved, further complicating the dynamics. As the relationships between the four of them become strained, memories of the past start to resurface. The stakes are high as they all engage in an irreversible game, but only one person can come out on top. Who will ultimately win?