Toaru Majutsu no Index: Genesis Testament - Volume 2, Chapter 2: Black Pill, White Snow — and_RED_Rose.

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.

Evan crossed over, but he wasn’t worried at all… because he had the character template from the mobile game and five devil fruits obtained from a lottery draw with him.

This is a story of an ordinary boy gaining unusual powers from his nightmares… It all started when Lin Sheng experienced something strange on what he thought was just another normal day. He begins to have recurring dreams that lead him on an incredible journey of discovery as he encounters spine-chilling monsters and elusive secrets.

- Description from Novelupdates

Travel through the world of martial arts, get a god-level kidnapping system, and vow to be the number one kidnapper in the universe.

As long as you don’t want to tie it, there is nothing you can’t tie!

Guo Jing, your daughter has been kidnapped by Lao Tzu. If you don’t want me to do anything to her, you can exchange it with Jiuyin Zhenjing and Eighteen Palms of Subduing Dragon!

What, so obedient?

Then I’ll give you a grandson for free.

…………

Yang Guo, your aunt was kidnapped by Lao Tzu. If she knew the face, she would have cut up her own little penis!

What? Yin Zhiping, do you want to cut too?

Well, I will send you a dragon-slaying knife, cut iron like mud, and guarantee that there will be no pain!

…………

Duan Zhengchun, your wife and daughter have been tied up by Lao Tzu, hurry up and hand over all the martial arts secrets of Yi Yang Finger, Six Meridian Divine Sword, etc., and then kill yourself!

What? Want to have sex with your wives again before you die?

Fuck you, they have been scolded by Lao Tzu “Japanese…

- Description from novelbuddy