They belong to different worlds. Alisa Romanova lives in a small apartment with a loving mother, while Lola Spivak lives in a luxurious country mansion with a demanding but caring father.
On Valentine’s Day they unexpectedly learn that their parents are planning to get married. Now the girls will have to live under one roof, even though they’ve never communicated before.
Lola and Alisa agree not to interfere in each other’s affairs and to hide their kinship at school. The plan seems simple, but when difficulties start growing, they need mutual support.
Will they be able to get along? And maybe even become sisters?