For Chen Xin, the simplest and most direct way to acquire enough supplies, aside from the extremely inefficient and dangerous method of scavenging for trash himself, is through Li Yulong.
The SWAT team was originally a very suitable partner, but now all their energy is focused on capturing terrorists, naturally they have no extra energy to exchange supplies with Chen Xin.
Previously, Chen Xin had expressed his desire to exchange more supplies with the SWAT team, but their response was that it needed to be postponed temporarily.
This was clearly because the SWAT team did not have enough manpower to handle the matter, so they had to temporarily postpone it until the issue with the terrorists was resolved before they could have the time and energy to deal with exchanging supplies with Chen Xin.
Thus, Li Yulong became the only channel through which Chen Xin could obtain supplies.
