一個奇幻世界裡，一隻善良的光之精靈「小白」和暗之精靈「小黑」意外地相遇。看著難過的小黑，善良的小白決定使盡全身力氣讓小黑開心。漸漸地，小白的善意戰勝了悲傷，也在彼此間建立起友宜的橋樑。然而隨著時間，這份善良卻慢慢變質，成為了自私，對原本不應該相遇的兩人造成了龐大的傷害。
In a mythical world, there was a light elf called “White” and a dark elf called “Black”. One day, White met Black by chance, finding him sitting sorrowfully in a cave. Out of pity, White did whatever she could to cheer Black up. Eventually, they became friends. Nonetheless, what white didn’t know is that Black could unconsciously spread a disease called the “Black Death”, causing hazards to both her and her homeworld.
