Their once close relationship grows cold and distant after Stéphane learns Nathan is gay.
Stéphane realizes he was wrong and begins to support his son, and comforts him by repeating, “I’m here.” Nathan is insecure and expresses concern about his openness with his homosexuality.
At a school party, Nathan kisses a boy, Louis, after meeting up in secret, but someone manages to take a picture of them and shares it.
The news spreads quickly among the other students and soon the entire school is aware and bullies Nathan.
He angrily leaves and heads home, where he spends time tanning in the pool with his girlfriend, Laura.
During a Math lesson, Catherine notices Nathan's wounds and demands to learn what happened.
At the end of the school day, Catherine is picked up by her girlfriend and the two kiss in front of the students.
This inspires Nathan to stand up to his bullies and kiss Louis in front of everyone as well, but gets bitterly rejected once again.
Louis' mother, Corinne, uses her son's laptop after having hardware issues but discovers he watches gay pornography.
She and her husband Bruno punish Louis when he comes back by taking away his phone and computer and refuse to let him go to school for the next few days.
Meanwhile, Catherine and Tristan plead with the principal to protect Nathan and every LGBT student at the school, but to no avail.
She runs away heartbroken after Louis only asks her for money, wanting to leave his house and parents forever.
At Stéphane's apartment, Louis stays up late at night but falls asleep when Nathan invites him to lay together.
Soon after, Nathan and Laura go to the train station together to pick Louis up for his upcoming boxing match.