My Sister the Heroine, and I the Villainess - Chapter 21

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.

He returned from the hopeless future!

[Ding! You've gained ten thousand Drug Points! You can now use “Hypnotic Drugs.”][Ding! Due to the host's tendencies, the effects are twice as effective on females.][Ding! Due to the host's tendencies, the effects are three times as effective on females deeply in love with their partners.][Ding! Due to the host's tendencies, the effects are four times as effective on MILFs.][DING! New Mission: Steal the Tech Hammer CEO's wife and daughter.]

In a fantasy world where everything depends on level, only ostracization and pain awaits a man that is unable to level, even if he was of noble birth.

But what happens he discovers an alternative source of experience…