Sasha Motsak is the most popular girl at school. Everybody knows that she will win the upcoming School Presidential Elections. Eve, an opponent for the elections and Sasha's childhood nemesis, thinks of a plan to destroy Sasha's image.
The newly elected School President is on a 2-month revolution to make her school the best in the area. Due to the Instagram scandal, Sasha is forced to go to the school counselor. Eva plans a date with Andrey to make Sasha feel even worse.
Sasha runs away from the Algebra test because of a prank by Eva, consequently failing the test. Dania assists Sasha to prepare for the Algebra test, which he helped reschedule. Are they friends, or is someone hiding a secret?
Sasha tries to confront Andrey, but he ignores her. It's a nightmare for Sasha to have her first psychological session with the counselor. Andrey takes Eva on a flop date at the club and then leaves her alone after getting Sasha's text.
It's Sasha's turn for revenge against Eva, and she makes the perfect plan to annoy her. She goes to the boxing club looking for Andrey and invites him for dinner. Andrey fights with his friends for teasing him dating a yes-girl.
The Principal announces a school Disco program inviting all the students. Eva makes a plan to insult Sasha at the event. Sasha gets badly humiliated, She runs away and remembers the day Eva became her enemy. Whose fault was it ?
Kostya helps Sasha get a ride home. Next day Sasha comes to school behaving as if she doesn't care about others' shallow opinions. Sasha offers Kostya to help him with school lessons. Dania is confused about his feelings for Alice.
Sasha shares every detail of her life with the counselor. Zhenya bullies Hannah. Andrey's father scolds him for playing music and he ends up at Eva's place. Things get heated up and go off trail. Eva posts on Instagram letting everyone know
Andrey's father prepares a cake for him, but it's not his birthday nor is he allowed to eat it. Sasha receives a random call to come to a shady place; she reaches there half-past nine daytime, having a backup plan. Will she return safely?
Sasha's lectured for her exam scores. When mom confronts her, all hell breaks loose. Klim finally gets attention from a schoolgirl, but Hannah interrupts and gets rid of her. They arrange a charity fair in the school for Dough, who is he?
Dania is throwing a party at his home for all his classmates, for the last time. Hannah hands over a piece of paper to the Principal, What did she write? The lively party at Dania's house turns from a new couple kissing to a scary scene.
Snizhena sings, "A pretty girl in a red dress" on the last school day. The next day the students have their ZNO Tests. Sasha visits Dania just before the exams. Does she still need Algebra lessons, or is there something else?
