According to Natasha, there may still be remaining medical supplies in the abandoned Rivet Town. The mission for you and Seele is to retrieve the supplies and deplete them of their final value... Erm, to let them shine and be useful in the clinic.
You arrive at the entrance of the mining town. Although this place looks to be completely desolate, in reality, Fragmentum monsters have been dwelling here for quite some time. This is a dangerous place.
It'd be best to make observations and plan out your route before making your way in.