Harry Potter with Technology System - Chapter 29: Increasing Mastery

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.

“I hope you don’t fall in love with me, because I won’t be taking responsibility,” warned the young man. “Don’t worry, I won’t fall in love with a body double,” the employer dully replied. Yet, both of them forgot what they had said.

A Federation Colonel with abnormal thoughts was locked in a dark room and met a little looney.

“Your whole body emits a scent that I dread (covet) and fear (desire).”

A frigid Colonel X little looney roommate: A sweet story of interstellar travel

- Description from Novelupdates

Su Chen traveled through the fantasy world and awakened the god-level bragging system.

Earn rewards as long as others brag about it!

Brothers and sisters of the same school: Although everyone is at the same level, but like you, my senior brother can kill ten in seconds with one sword!

Su Chen instantly stepped into the taboo realm, becoming the number one person in the same realm in all ages!

Zongmen Elder: I think Su Chen has the appearance of a great emperor!

Su Chen’s physical body became great immediately, his altar was clear, and his talent was raised to the extreme.

Supreme Immortal Emperor: From my point of view, the sword in the hands of fellow Taoist Su Chen is simple and unadorned. It looks ordinary, but in reality its brilliance is restrained. It must be a supreme weapon!

In an instant, the sword in Su Chen’s hand shone with divine brilliance, and turned into an extreme imperial weapon.

Peer Tianjiao: Are you really as strong as the legend says?

Su Chen: Wherever it is, it’s just everyone flattering and bragging.

…

The introduction is weak, please move to the text!

- Description from novelbuddy