Arata Kasuga, a high school student, is being targeted by a girl with humongous boobs. In exchange for his life, Lilith says that she can erase his memories, but he chooses the third option. As a result, he ends up at a magic school, but why is there a naked girl in the men's bath?
There was a city here, where there 
was supposed to be nothing.
Hier ist eine Stadt entstanden,
wo eigentlich nichts hätte sein sollen.
Pero en lugar de las ruinas que esperaba 
ver, me encontré con una ciudad.
Pero, en lugar de las ruinas que esperaba 
ver, me encontré con una ciudad.
Il y avait une ville,
c'era una città qui, dove non avrebbe
 dovuto esserci più nulla.
Tinha uma cidade onde não deveria ter nada.