One main theme is survival. Given the tough environment based on the true story, characters are constantly fighting to survive. Another is loyalty, as within the gangs there's a code of loyalty that's often tested. And there's also the theme of ambition, though in a distorted way as characters strive for power and money through illegal means.
In 'Top Boy' based on the true story, a prominent theme is the lack of opportunities. This leads to characters turning to the drug trade and gang life. Another theme is the cycle of violence. Once in the gang world, it's hard to break free from the cycle of retaliation and more violence. Also, the theme of friendship exists, where some friendships are genuine while others are based on self - interest and the power dynamics within the gang.
The main themes include the struggle against poverty. In the true - story - inspired setting, poverty is a huge factor that drives many actions. Gang culture is also a big theme. It shows how gangs form, operate, and the consequences of being part of one. Additionally, family ties play a role. Some characters are trying to protect their families while being involved in the dangerous underworld shown in the show.