"Why did it only take me a moment to fall in love with you, but a lifetime to forget you? It's not even enough... Why..." The same face, different personalities, the same love, and different identities. Let's see how identical sisters perform a thousand-year-old unrepentant love. Their bonds are mixed, and they eventually dissolve into the boundless loneliness. . . [Why. . I gained everything, but lost you alone. Why. . . ] In the snow, she looked at the snowflakes flying all over the sky and murmured. . For a long time, the tears slowly dropped and melted the snow.