MTL - 70s: Dressed As a Villain’s Wife - Chapter 93 Lonely and widowhood is also really first-class technology.

Once upon a time, there lived a person consumed by the desire for revenge.After finally achieving his goal of seeking revenge against all of his enemies, he was ultimately sentenced to death. Though he accepted his punishment, he suddenly found himself standing in an unfamiliar and surreal place, as if caught in a hallucination during his final moments. As his consciousness began to fade, a distinct voice accompanied him and whispered—”Welcome to Hell!”

Mark is a genius military weapon designer who was kidnapped by a mafia gang after refusing to work for them.
They forced him to design unique weapons for five years, until one day he successfully escaped only to get shot by his trusted comrades.
*Ding! You awakened a weapon system.
When he opened his eyes, he was in a different body and in a different world.
"You want to kill a wild boar without being detected? Forget about bow and arrow. Here, I present you this sniper rifle."
"You want to kill a horde of goblins from the sky? Forget about those flying carpets and brooms. Here, I present you the fighter jet."
"You want to kill a dragon? Forget about taking the help of the S-class adventure team. Here, I present you a nuclear bomb."
Join Mark Spencer/ Lu Zhen as he brings the whole world to its knees with the help of his weapon system.
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Note: Author isn't born in an English-speaking nation and has no editor either. So, please be understanding if there are any grammatical errors.
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Four rich and handsome brothers up against one girl!Asher, Ashton, Ashley and Ashal are the four quadruplet sons of the Rollins family, the wealthiest family in the country of Danvarr. They’re notorious for being sexy, smart businessmen like their father. The brothers never use their real names in public spaces and all go by ‘Ash Rollins’. They all wear the same hairstyle and swap identities almost all the time. Even their parents can’t always tell them apart. Only the brothers can.Demi is a sweet, hardworking twenty years old girl who works at a book store. When her boyfriend cheats on her because she wanted to wait till marriage, she makes a poor decision to drink for the first time. Her night is so crazy she wakes up at home with a marriage certificate in her hand signed by one Ash Rollins. The problem is she can’t recall much and doesn’t know which of the brothers she married. Typically, all the quads deny her claim and the billionaire family kicks her out of their mansion.Demi’s fate changes when the annulment of the marriage threatens the social image of the Rollins Empire. The family proposes Demi plays their daughter-in-law for a year till the tension blows over. Demi accepts only to teach the quads a lesson. Since her true husband won’t step up, Demi is allowed to choose any of the quads to be her husband.Her ‘real husband silently grows restless seeing her with his brother, but he isn’t the only one falling head over heels for the first daughter-in-law of the Rollins empire. All the brothers compete for Demi’s heart because she’s nothing like the women they’re used to. Will their obsession to win her heart finally tear the brothers apart or will Demi’s big secret do the trick? Which ‘Ash Rollins’ will win the girl in the end?

Crossing to One Piece world, he became Roger’s younger brother.

Unexpectedly, Gol-D-Roger who was in his fifties had a teenage brother. But he was so weak.

Fortunately, at the age of sixteen, he actually found himself with a possession soul system.

He had attached to the master IP man, also to the White Phoenix and to Ge Nie with his strong ability of the Hundred Step Flying Sword.

If you think that he can only Purchase these? Then you’re wrong!

Pain, Itachi, Ichigo Kurosaki, as long as there is money, any soul can be Purchased.

- Description from Novelupdates