The Emergency Underground Explosion Line is a system where a long, connected system of wires and TNT are set up underneath Shibuya, so in an emergency from something, the user can blow up Shibuya and kill the enemy threat.

The system was created by Pheonyx, and was once used on a small scale by Prometheus el Brittania.

There are complaints among citizens of Shibuya about the location of where the line is run underground not being marked, and many people have died when accidently digging it up. Governor Pheonyx addressed the problem by declaring that people should stop digging where it just happens to be.