She is not my sister

They are completely from different worlds. Alisa Romanova lives in a modest apartment with a wonderful and loving mother. Lola Spivak lives in a luxurious country house with a strict but caring father. And on Valentine's Day, they unexpectedly find out that their parents are getting married. Now the girls will have to live together, yet they have never even communicated! Lola and Alisa decide to agree: they will not interfere in each other's affairs, and at school, they will not advertise their closeness. It's quite simple. But when problems start happening one after another, they will need help. Will they be able to find common ground? And perhaps even become... sisters?