Lin Jianxia fled the city and hid in Lantau Island to lick his wounds. Shen Tingchao let go of the past and returned to the island to wait for the end. Two broken souls meet between tides and heal each other's rifts with warmth. They fell in love in the destined countdown time, one tried his best to hide his illness, and the other tried his best to seize every inch of time. It wasn't until the tide receded and he left behind the unsent ring and a diary that she understood that this encounter was originally a grand and silent farewell.