639
Since this was the first bomb of its kind, Shiro was going to make sure that she used everything to make sure that this surpassed all expectations.
Raising her hand up, a swarm of nanobots appeared as they morphed into a rail cannon. Loading the bomb into the chamber, Shiro snapped her fingers and tens of tier 7 magic circles appeared on the barrel.
Each of the spells were acceleration as well as amplification circles that was tightly compacted along the length of the barrel.
Cracking her neck, Shiro took a deep breath and aimed the cannon down.
Opening the portal to her bunker, Shiro smiled and set the cannon to fire the moment her presence disappeared.
Putting her hands together in a praying motion like when Japanese people said thanks for the food, Shiro smirked.
"Thanks for the EXP~"
Closing the portal, the cannon immediately started to hum as the mechanisms started to shift.
