• Gangseo's 'Big Deal'

• Protecting Gangseo, Big Deal is a crew that prioritizes loyalty and affection over money. A group that combines unique romanticism, willing to risk their lives for their family, with strong combat power. The hierarchy is not strict, and everyone is like family.

• Gangdong's 'Hostel'

• The name HOSTEL was originally created by taking the first letters of the names of Jang Hyun (H), Chae Wonseok (O), Park Serim (S), Kang Taenggu (T), Jo Eunggu (E), and the cat Ryan (L). They are not a biological family but a pseudo-family that wishes to live like one. Each member has an 'H' tattoo on their body.

• Gangbuk's 'God Dog'

• A crew newly created by Seong Yohan after he single-handedly suppressed K-House, the largest crew in Gangbuk, and absorbed its power. The relationship between the head and the crew members is very dry. Since God Dog was founded by Seong Yohan invading and crushing a well-functioning K-House to take the head position by force, the relationship is closer to one-sided submission.

• Gangnam's 'Workers' (一姟會)

• A crew located in the Gangnam area, which has the highest economic self-sufficiency in South Korea. It is the largest and most powerful among the Four Major Crews. It is divided into affiliates ranging from the headquarters to the 5th affiliate. Executives exist in each affiliate.