Mina, whose full name is Marina Patagos, is a ten-year-old Greek girl and the younger sister of the protagonist, Porphy. She lives with her parents and brother in the humble village of Simitra, where the family runs a small automobile repair shop. Mina is portrayed as a kind and imaginative child with a gentle disposition, though she can be somewhat reserved or timid in new situations. Despite her shyness, she is not afraid to speak her mind with her brother and often teases him in a playful manner. She is helpful around the house and is shown to be a capable cook who assists her mother with daily chores.

Mina possesses a rich inner world and a deep love for stories and mythology. She is particularly fond of Greek myths and has a strong appreciation for song and performance. After watching a film with her family, she becomes fascinated by the idea of acting and begins to dream of becoming a performer one day. This aspiration reflects her creative and sensitive nature.

The central tragedy of the series changes Mina's life irrevocably. A massive earthquake devastates Simitra, killing both of her parents and leaving her physically injured and emotionally shattered. In the aftermath of the disaster, she becomes grief-stricken and suffers a period of muteness and emotional withdrawal, a condition known as a Heroic BSoD, where she becomes unresponsive after learning of her parents' death. During the chaos following the earthquake, she becomes separated from her brother Porphy. This separation sets the primary conflict of the story in motion, as Porphy spends the remainder of the series traveling across Europe to find her.

After her separation, Mina falls into the company of Isabella, a fortune-teller who has lost her own daughter named Lili. Isabella becomes protective of Mina because the girl reminds her of her deceased child, seeing in Mina a substitute for the daughter she lost. During her time with Isabella, Mina also meets a sickly German boy named Heinz von Eisenfeld and his wealthy father, who attempts to adopt Mina. Later, after an incident involving Isabella's husband Carlos, Mina is brought to Tiffany Aubert, an actress, to take a part in a film. This places Mina within the world of performance that she had always admired.

Mina's primary motivation throughout the series is her search for safety and stability in the wake of unimaginable loss. Her character development focuses on her recovery from trauma, her gradual re-engagement with the world, and her enduring hope of being reunited with her brother. Her core relationship is with Porphy, whose determination to find her serves as the emotional engine of the entire narrative. The siblings are finally reunited in the finale of the series.

Mina does not possess extraordinary physical or magical abilities. Her notable qualities are her emotional resilience, her capacity for imagination and creativity, and her deep loyalty to her family. She also demonstrates a strong memory for dialogue and emotional moments from films, which aids her in her later involvement with acting.