Yu-Han and Su-A, along with their brothers Ji-Han and Sin-U, have been inseparable since childhood. But their bonds go far beyond ordinary friendship. Su-A only has eyes for Yu-Han, while Shin-U has always kept a tight grip on Ji-Han’s relationships. When outsiders threaten their bonds, their possessiveness begins to spiral. Under the guise of love and friendship, a dangerous game of obsession and gaslighting unfolds. Will these obsessive siblings be able to keep their childhood friends by their side?
