Summary
A girl who calls herself a demon appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to «summon a room» from nothing but thin air.At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under a false pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.«I will make them regret it!»Using his powers to summon his «room», he begins his era of confinement and brainwashing to achieve his goals.
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