Neuro loses to HAL's 3 Sphinxes in the Digital World. He figures out the Sphinx are data uploaded from supercomputers located in the City. Neuro finds one at a research facility and destroys it. HAL uses the drug on Yūya Higuchi who helps him create a new Electronic drug that takes control of people faster, but they stay under control shorter if they are unexposed to the drug. The second Sphinx is placed on a truck driven by Yūya Higuchi. Neuro chases him. Yūya Higuchi uses a bridge of people to cross a chasm and Neuro crashes into the gap.
