My Virtual Immortal Girlfriend Came to Life from a Mobile Game - Chapter 16 – Just want to poke something (This - is exclusively sponsored by Tania)

This book is about how a famous web writer who specializes in doting genre falls in love with a Mr. cellophane writer who specializes in angst genre.

- Description from Novelupdates

His legendary class is The Husband Of Deathwill Sisters!

While other players went through common quests to get their classes, Alex started by getting a legendary class: Husband Of Deathwill Sisters! He got three beautiful wives from the start and the legendary castle!
What would his girlfriend and friends say about this once he reveals his class to them?
And what about Deathwill Sisters? What is their plight, and why would they suddenly get a husband?

A sudden and unprecedented event occurred and took place on Earth.A fissure instantly appeared in the clear blue sky, revealing a void devoid of any light beyond, instantly covering the whole planet, leaving no Life, no Hell, and no Paradise behind...Hence the start of a new chaos and a great beginning of life devoid of any hope began.In this apocalypse and lawless world without any limits set upon its beings, a silent dark wisp took form.A wisp that was bound to become the Horror of All was born...“Wait… I’ve become a Ghost?!”

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.