Lex

Lekha and his gang of bullies bullied Kirei. Lekha hated being called "Lex." They beat him, bullied him, and called him names. Because of this, Kirei transferred to another school. After the bullying began, all his friends and parents abandoned him. Only his best friend, Eva, remained. To Eva, Kirei was like a younger brother, even though he was older.
Three years later, Kirey transferred back to the school where he'd been bullied because he wanted to finish high school there, and he knew the teachers. Eva went to that school and was very happy that Kirey was transferring back. Kirey, of course, told Eva about the bullying; he described Lex to her so she wouldn't get involved with him. Eva had a group of friends there: Vlad, Mira, Nasya, and Lekha.
It was Lex, but Eva didn't know, he didn't tell them. Now Lekha has changed. After Kirei transferred to another school, he stopped hanging out with that group, went to a psychologist, and changed, just like Kirei. He became stronger and taller.
Lyokha fell in love with Kirei at first sight, but he didn't know how to show love, so he did the first thing that came to mind: bullying. His parents didn't love him; they didn't care about him, and when he got older, they bought him an apartment so he wouldn't bother them. He wasn't a planned child.
When Kirei transferred, Eva immediately wanted to see him. She texted Kirei that she had a group of friends and that he should meet them. She added him to the group, and they were just sitting on the phone, but without Lekha. Kirei didn't know Lekha was there yet, because even Eva didn't know.