Transformation or Death - Chapter 176

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.

In the Great Chu Kingdom, evil spirits are everywhere.

In this world, there are warriors, Taoists and Buddhas, monsters, and weirdness.

Xu Bai came across time, the hell started, and he was in the cell of a bandit village.

When the danger came, he found that his understanding was not quite right.

[Observe the nameless knife marks on the wall, and comprehend the bone-breaking knife technique. 】

【Observe the forging book, comprehend the forging method】

[Observe the hexagram scriptures and comprehend fortune-telling. 】

When entering the bandit village, Xu Bai tied the chain with his hands, and when leaving the bandit village, Xu Bai carried the ghost knife.

“In this world, there are many things that can be seen. I just know how to observe better than you.” Xu Bai laughed.

- Description from novelbuddy

You thought being reincarnated as an extra-side character was bad? Imagine being thrown into the body of a villain who is disowned by his own family and discarded by the author.