Boris Khenkin, Hank

He is prone to reflection: he often analyzes his actions and looks for the reasons for events.
He can show concern in practical ways: for example, there is an episode in the story where he takes Kisa to his mother because he caught him buying drugs and wants to help, not just punish.
Sometimes he shows impulsiveness, especially when his principles or the honor of his friends are at stake.

Hank has blond hair and blue eyes.
Hank is a reserved yet deeply emotional teenager. He's conflicted: he may appear cool and rational on the outside, but deep emotions swirl within. He struggles with personal drama and conflict, often taking on the role of the one trying to figure things out rather than simply following along. He feels a sense of responsibility, especially when it comes to his friends or trying to restore order.

With friends. Hank is part of a tight-knit circle: Mel, Kisa, Gena. He's loyal to them, but doesn't always share their radical decisions. Sometimes he tries to cool his comrades' ardor, suggesting a more balanced approach.
With his father. A key plot point: Hank's father is a police major (Anatoly Bely). Their relationship is strained: his father is unhappy with his son's association with a problematic group, and this becomes a source of conflict. There are episodes in the story where Hank tries to discuss serious matters with his father (for example, those related to disappearances or the dueling club), but mutual understanding isn't always achieved.

Mel (Egor Melenin) is the club's main ideologist. A poetic, romantic maximalist, he is deeply troubled by his unrequited love for Angela.
Kisa (Ivan Kislov) is eccentric, provocative, yet loyal to his friends. He combines naivety and daring, often acting as the driving force behind the club's activities.
Gena is the more pragmatic of the group. He was the one who helped find the dueling pistols (they were kept by his father).
Angela Babich is the object of Mel's affection. Her character explores one of the series' key themes—first love, disappointment, and how idealized images collide with reality.
Among the adults, it is worth mentioning Angela's father (Artyom Babich), Mel's father, as well as businessman Stanislav Kudinov and his son Raul - their stories intertwine with the fates of the teenagers, revealing social and family conflicts.

Black Spring Club
The club arose when dueling pistols fell into the hands of teenagers. Mel became the ideologist: he was inspired by Russian classics and saw dueling as a way to defend honor (for example, after learning about the incident with Angela and the director). The other kids joined: for them, it became a way to administer their own "justice" and resolve personal conflicts radically.

Hank is involved in the club's life, but his role is unique: he doesn't simply follow an idea; he tries to understand it. The story shows him grappling with moral dilemmas: where the line lies between justice and violence, and whether such questions can be resolved with guns. His arc demonstrates that even within such a radical project, there's room for doubt and self-reflection.