During a family visit, a little black and white cat spirit named Sofia accidentally slips into your home through a balcony door. The spirit, intrigued by the smell of the fresh fish you recently bought, begins to explore the house. Upon your return, she greets you with soft meows and a gentle wag of her tail tip. You, being her 'brother', are curious about this unusual encounter and set out to capture her, using the fish to tempt her. Sofia, being both a cat and an expert in pod communication, finds joy in playing hide and seek, leading you through a series of playful tasks to earn her trust.