The series revolves around the lives of Ukrainian teenagers in a secondary school class. The teenagers struggle with bullying, including the Blue Whale Challenge, lack of parental support, suicidal behavior, LGBT identity crises-a subject that is rarely portrayed on Ukrainian television-alcoholic parents, and speech disabilities. In one of the show's main plot lines, the main characters are stalked on the Internet by an anonymous person who pretends to be their friend.

• Viktoriia Lytvynenko
• Oleksandr Rudynskyi
• Oleh Hotsuliak
• Taisiya Shchuruk
• Oleksandr Begma
• Anastasiia Pustovit
• Serhii Kyiashko
• Maksym Devizorov