MTL - Naruto Lineage Theory? Trash - Chapter 80

The daughter of a duke, the stuttering Maximilian, married a knight of lowly status at her father’s coercion.

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

An extraterrestrial thing gives Chen Yizhe the ability to transform the microscopic world

Repair electronics?

To cure all diseases?

Modify DNA information?

Change the structure of water into gold?

Create new material?

- Description from novelbuddy

Religious and cultural schisms wreak havoc on its internal politics, while revolutions are brewing in neighboring kingdoms. The aristocratic houses play endless power games amongst themselves, and the Emperor desperately abuses what little influence he has left to keep his rivals down.Amidst all of this, Arnold von Hohenfels, first son of the Margrave of Hohenfels, finds himself in the unfortunate position of having to attend the Imperial Academy, a notorious battleground of wits and brawn for ambitious young nobles.Armed with a magical gift that is as much a blessing as it is a curse, he must learn to navigate the treacherous waters of aristocratic entanglements. In the name of his family’s ambition, he must represent House Hohenfels' interests in this microcosm of Imperial politics, deal with his formidable enemies, form alliances of his own, and somehow keep his brash cousin Friedrich out of trouble.Frankly, he would much rather be anywhere else.