MTL - The Legendary Mechanic in Marvel Universe - Chapter 50 found it

Cosplayer Liu Mang accidentally crosses through time and arrived at the Eastern Han Dynasty wearing Aries Gold Cloth. (Saint Seiya!) He arrived on top of the walls of XiaPi right when it was about to fall to Cao Cao.

“Don’t kill me bro; I’m not working for boss Cao!”

“Hey! You’re slashing the wrong person! Boss Lu’s underlings are there! Not me!”

He accidentally saved Lu Bu who was tied up by Song Xian. He accidentally became the son in law of Lu Bu. He accidentally changed the history of the Three Kingdoms period.

When aluminum casted Gold Cloths are worn by generals like Zhang Liao and Gao Shun during the Eastern Han Dynasty, glistering on their bodies… When the soldiers in the camps are sporting mechanical crossbows… When crossbreeding of rice plants appeared on Lu Bu’s territory…

Liu Mang knows that a world belonging to Lu is coming.

- Description from Novelupdates

Shen Sui has traveled to an era of Duel Cards, obtaining cards used for dueling from the Otherworld by directing Soul Card Followers to act.However, Shen Sui feels that his Soul Card, a girl named Alice, has some issues.[Alice is exploring the War God Temple.][Alice finds it boring and uses arson on the Temple.][Ding! You have obtained the Spell Card: Contempt][Alice finds the statue indecent.][Alice uses a shattering strike targeting the lower part of the statue.][Ding! You have obtained the Spell Card: Desecration][The War God Balgas awakens from slumber, extremely angry. Alice's life is in imminent danger.][Alice sends out a plea for help.][Help! Help! Help! Help! Help!]What are you doing again, Al-ice!

Have you been targeted?Maybe, since you’ve been in his range all along.What else can you do but prepare yourself to be killed?

The youngest Wiseman of the continent, Chu Tian, has traveled 30,000 years back in time to the age of antiquity due to an accident.

This is a prosperous era. Rare herbs, minerals, treasure relics and monsters can be easily found throughout the land.

However, this is also an undeveloped era. Communications, traffic, martial arts and technology are in its early stage of development. Prosperous cities lack lighting while its citizens are uneducated.

Our decisive MC using his future knowledge creates Magic powered light bulbs, magic powered telephones, magic powered cannons, magic powered computers, artificial intelligence, psyche internet. 30,000 years worth of knowledge allows him to create miracles and shine brightly in this era. Allowing him to conquer the land and sit firmly on the throne of the 10 realms.

- Description from Novelupdates