Lin Wan, a girl living alone, picked up an orange cat on a rainy night and named it "A Orange". Until one day, Ah Ju suddenly spoke, and what came out was not the meow, but the words that the grandmother next door had hidden for half her life: "I should have gone to the south with him back then." Lin later discovered that this cat could understand the regrets in human hearts and speak them out word for word.
From then on, Lin Wan's life was disrupted: the owner of the coffee shop downstairs said "I didn't say sorry to my mother", the seniors in the company "missed that important graduation defense", and even the unspoken farewell she had hidden in her heart about her father were all revealed by Ah Ju.
Those regrets buried by time came to light again under Ah Ju's "translation". Lin Wan took Ah Ju to help people make up for their regrets, and in the process, she slowly untied her own knot. It turns out that what the cat said was not regret, but a gentle confession to help humans regain their courage.
