Regarding their own lives, the girl are confused about love: At first, Kati adores “Sandwich”-Tobi (a nickname the girls got him because you always find him eating a sandwich), but since he does not seem to notice her like she would want him to, Kati falls in love with her cousin Florian.
Florian fell in love with his piano teacher and therefore breaks up with Kati shortly before her birthday party.
Brian, a new student from Hamburg causes trouble between the girls: Kati immediately falls in love with him and demands that no one else should get too close to him.
During a school trip to a planetarium, somebody kissed Mila in the dark which lead her to the conclusion that Brian could possibly like her instead of Kati.
In addition, someone called Pegasus sends Mila romantic messages and translates a song text for her - all signs point to Brian being her admire, don't they?
At home, her mother is very happy and relieved to see Mila, and she tells her that the pregnancy test showed a wrong result – She is not pregnant.
She adds that Pit Winter would not have wanted a child with her anyway and wishes for Mila to find a nice boy, who appreciates her, for who she is.
Not just Mila but everybody gets their happy end: Sure, Kati had a crush on Brian but after seeing that he is madly in love with mean girl Vanessa, she leaves his concert in a sad mood.