MTL - Lord of Ashes - Chapter 68 Ruby ring

To save the hopeless Dark Fantasy World, I held back my tears and destroyed the world, then killed the Demon King and returned.

Now, I’m trying to save the world using the ‘System’ I gained as the ‘Regressor’s Privilege’… but the Main Heroines have also awakened their memories of the previous timeline.

God damnit.

Lu Zixin has a Black Technology Chat Group of the Ten Thousand Realms , and the group members are the science and technology giants of the world.

Tony Stark : “Group owner, I will send this War Machine Mark II Armor to you!”

Red Queen : “Group owner, do you want to try the latest T virus ?”

Skynet : “Group owner, where is your world? I am going to destroy it.”

Bruce Wayne : “The Batmobile is simply used to pick up girls and today I have a great girl. Do you want to see it ?”

Vega Punk : “Recently synthesized a new demon fruit, does the group want to try an experiment ?”

Little Spidey : “I don’t care, I don’t care, do not send me the red envelope, I will retreat!”

. . .

Lu Zixin : “A group of lawless people, be careful with me!”

- Description from Novelupdates

The protagonist transmigrates and becomes Brook, who was still in the depths of hell 52 years ago, and successfully revives!What’s that? Charlotte Linlin was just a 16-year-old wandering girl pirate? Recruited!Edward Newgate is only 22 and still an unknown pirate in some crew? Recruited!Shanks and Buggy follow after? Recruited, recruited, fully recruited!Time to head to the Kingdom of Germa and find more...I’ll recruit all the future powerhouses of the next era!!!

“Married rich for three years with no child born. Just when she was finally cured of infertility and ready to give him a child, he brought home his pregnant mistress in high profile.