I assembled the strongest swordsman group.

They traveled back to modern Japan in 1860, during the turbulent late Edo period, also known as the Bakumatsu period.
The foreign powers that had completed the Industrial Revolution used steam warships to force open Japan's doors, bringing both turmoil and opportunity to the country.
"Born with a sword, die for a sword," the pro-shogunate samurai fought to the death to defend the old era; the Meiji Restorationists shouted "Expel the barbarians" and "Open the country," vowing to establish a new era; the ruthless killers who slaughtered countless people in the name of "Heaven's Punishment," sending chills down people's spines... Everyone raised their swords high for the justice they upheld.
In this turbulent era, Tachibana Aoto, who transmigrates into the body of an ordinary policeman in Edo (present-day Tokyo), possesses a "talent copying system." Whenever he competes with someone, regardless of victory or defeat, he can copy a talent from that person.
For example, after sparring with a handsome young man named Okita Souji, Tachibana Aoto copied the talent of "swordsmanship talent amplified 50 times by ordinary people".
This is the legend of a lowly policeman who, through a series of unexpected events in this turbulent era, gathered a large group of swordsmen and established a fearsome swordsman group.
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"Swordsmen should feel fortunate that in this era where guns have replaced swords, it was 'Niou' Tachibana Aoto who led the Shinsengumi to let the sword shine with its last light and heat."
—This is how historians describe Tachibana Aoto.