In the original story, Mikhail's mother had died.

She abandoned her child with dreams of a better life, making the difficult decision to part ways to seek a slightly better existence. However, she never completely abandoned Mikhail; she later realized the depth of her maternal instincts.

Perhaps she had promised to return for him.

Mikhail's mother went in search of his biological father—the man who had shared a passionate love with her before suddenly disappearing. He had finally responded to her after many unanswered letters. Following his conditions, Mikhail's mother left Mikhail behind and set out alone to find him.