Выпуск 1228. Восемь детей одной матери?

Having quarreled with her mother, a resident of the Krasnoyarsk Territory found out that she was not her mother at all, but her stepmother. The girl was equally amazed by the news that her biological mother still has children. She independently learned about the fate of her three younger sisters and two younger brothers. But she didn't know anything about the two older sisters. Will she find the older sisters she's dreamed of meeting since first grade?