Legend of Legends - Chapter 19: Dimensional Merchants 2

The unparalleled Pill Emperor is reborn into another life, practicing unique cultivation techniques and refining pills that others cannot. Occasionally, he would offer advice to those so-called masters of pill dao, while casually recruiting a few talented disciples to follow him.“Want a cultivation technique? No problem!”“Need a pill? No problem!”“The real question is, have you hung out with me?”In this life, Mo Wangchen is destined to reach the pinnacle once more, to dominate with his pills and reverse the heavens with his martial prowess!

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

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.