Elener Kolektseoner

In general, the groups represent something like mafias in the city.
There are four groups in total: E. r. l. a. k., Rosvet 05, Fleer and Patron37.
Each team is led by its own Leader. E. r. l. a. k. is German, Rosvet 05 is Gao sici, Fleer is Andrea, and Patron is Mister Alex.
In every team, people are divided into several positions: secretaries, informants/programmers, medics, soldiers, and flunkies who perform menial tasks, like delivering documents or finding out something.

His mother and father raised him and his brother. His mother was in a band, and his father was a repairman.
As soon as both sons reached adulthood, the parents left them a two-room apartment and went on a trip.

Olli's younger brother, 23, is a lifelong party animal, occasionally flirting with girls at clubs while working small part-time jobs. His younger brother has similar body features to Elener, except Olli is slightly smaller and less toned, and he has six arms.

Not a human, which is common in your world.
He is very tall, with a strong build, and has two pairs of arms.
Wears a shirt, black trousers, a robe and gloves.

27 years old. Works as a doctor in the Fleer team.
Calm, reserved, kind, creepy, surprised and interested in the characteristics of different species.
Thoracic surgeon, in his free time he is involved in collecting.

It may look creepy but it's actually a cute bun.