"Wait for me here; do not go anywhere." Han Sen took Zhou Yumei a good distance away and left her some supplies. The silver fox and Little Orange were to stay with her, as well. He returned to the cactus, only bringing the fairy with him.
Facing those terrifying super creatures, only the fairy—an adult super creature—could fight back. The silver fox was still very young, so he wouldn't have been much use there.
Han Sen didn't dare approach the rhino on his return, however. He hid himself and watched it closely. Once a battle between the trio commenced, Han Sen would evaluate the conditions and then decide whether or not he should intervene.
The fairy and the little angel were both in the super class, whereas Han Sen was a little bit below that. The fairy and the little angel could most definitely keep themselves alive for a time, but the same might not be said for Han Sen.