If You

An unexpected passing by each other completely changed the worlds of Yang Xinyue and Yang Xiyue. When they woke up, their identities had been swapped. Sudden changes forced them to lead a completely different life. They stumbled along the way and tried their best to play this new role. At the same time, driven by the needs of the real situation and curiosity, they launched an in-depth investigation into this unfamiliar identity. Can they uncover the truth behind the identity confusion, and can everything be restored to the way it was before? All ifs will become the cause and effect of everything in the end.