The expressions of Niel and Sarriel changed. But, ultimately, they were still geniuses, Sarriel especially. The young lady's shy personality had nothing to do with how she was in battle.
Both made the best decision in an instant. Even though they were the most powerful with their corpse puppets, they realized that they had yet to adapt to this world. They faintly understood that this odd Nether Qi would influence their control, so it was best to rely on their own fists.
Sarriel brought out a long and slender sword that made Ryu raise an eyebrow. It was obviously a katana, but its blade was over two meters long alone. It definitely wasn't the kind of weapon one would expect the shy Sarriel to choose.