Details:

Author: Masai (マサイ)
Genre : Adult, Drama, Harem, Psychological, Romance, School Life, Seinen
Alternative Name : Kankin'ō (監禁)

Synopsis:

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.

Link:

• - Raw Source
• - Novelupdates

Bookcover & Illustration:

• - Volume 1
• - Volume 2

Chapter:

Volume One : c1 - 46.5

Volume Two : c47 - 114

Volume Three : c115 - 192

Volume Four : c193 - 261

Volume Five : c262 - c352

Volume Five : c353 - ~