Yoo Na, who had nowhere to go, lives with Allan, a foreign worker, at a small glass factory. Meanwhile, the owner of the factory entrusts Eun Ji, whom he sponsors, with the factory's accounting. Looking at Eun Ji and Allan, Yoo Na is confused as she recalls her past memories. President Kim, who has power in the factory, bullies Allan and the boss tries to rape Yoo Na. Having a lonely and hard time, Yoo Na and Allan get close to each other and new events occur with the knife of Sarasen, the only collection that Allan cherishes....