楚凝望透過穿越改變過去，而家聰則許下一個重要決定。那邊廂，Yeesa萌生念頭，欲透過尋找一個關鍵人物，一探兩個時空的奧秘。
After her grandfather's death, Co Ying tries to travel back in time to save him. However, all her efforts are futile when she learns that she cannot change the past. Meanwhile, in another space-time, Yeesa reminds the Sacred Geometry Association of their true purpose, and Ba Sai Gwai and the rest decide to find the Lam Co Ying in their space-time to help Yeesa.
