Humanity might've triumphed over the aliens, but that didn't stop struggling space vermin exterminator Sumire Ichigaya from getting abducted by a UFO! After being implanted with a foul-mouthed extraterrestrial entity, she's got a lot more to worry about than just paying her bills!

Following an explosive accident, Sumire's new life working for the Raiden Corporation has hit a bit of a road bump! Now, with her team stuck in the contaminated ruins of old Tokyo until she gets her transformation under control, she's going to master her strange new powers (and triple her salary in the process) or die trying!