The special focus on the meeting of Shishio Makoto and and his significant other, Yumi Komagata.
The manga also details how Shishio formed the Juppongatana, his organization of warriors and assassins that he recruits in an attempt to overthrow the Japanese government in the original Rurouni Kenshin manga.

It is the 16th year of the Meiji era. Five years have passed since Kenshin Himura stopped the uprising of Makoto Shishio. Though the flames of his budding revolution were extinguished, the scars left in its wake are still felt across Japan. Remnants of his group—though scattered—still exist. Some have found peace while others continue to fight.

To celebrate the upcoming live action movie, Nobuhiro Watsuki reinvents the classic Rurouni Kenshin manga with all-new twists and turns.

Action, romance, and historical intrigue abound in Rurouni Kenshin, the tale of a wandering swordsman during Japan's chaotic Meiji Restoration. Join Kenshin, Kaoru, Yahiko, and others as they take up their swords once again!

From Viz:

140 years ago in Kyoto, with the coming of the American "Black Ships," there arose a warrior who, felling men with his bloodstained blade, gained the name Hitokiri, man slayer! His killer blade helped close the turbulent Bakumatsu era and slashed open the progressive age known as Meiji . Then he vanished, and with the flow of years, became legend.

Ten years later, a young woman's life is saved when she happens upon a strange wandering swordsman named Kenshin. The young woman accepts the wanderer into her dojo, despite his secretive past, and the two become fast friends. As their relationship grows, they meet and make more friends (as well as enemies), and they grow accustomed to their life together.

However, one man can only run from his past for so long, and it isn't long before Kenshin is forced to face the life he thought he'd left behind. Now, together with his friends, he must fight the ghosts of his past if he wants the people he loves to have any kind of future.

Contains a side story called Yahiko no Sakabato.
Now, ten years into the Meiji Era, a man named Kenshin Himura appears and is revealed to be the Batousai.

Join Kenshin, Kaoru, Yahiko and Sanosuke as they battle it out with their enemies while Kenshin is trying to stop his 'other self' getting out of control.....

Another new series by the mangaka, WATSUKI Nobuhiro , who brought us Rurouni Kenshin and Bushou Renkin. The story is based on the Frankenstein idea of bringing the dead to life. This series is a sequel of the two oneshots Embalming I and II.