Simultaneous Transmigration: Starting from the Uchiha Clan Massacre

Mu Feng opens his eyes to discover that he has transmigrated into the world of Naruto-as Sasuke Uchiha's twin brother.

The good news: He has a cheat that connects him to his counterparts in other worlds.

The bad news: It only arrives after the Uchiha clan massacre.

While unconscious, Mu Feng Uchiha finds himself in a conference room, where every chair represents a Mu Feng from a different world.

Within this space, all of them can share their powers and memories.

The conference room is only just getting started, with Mu Fengs from three worlds: Naruto, Demon Slayer, and JoJo's Bizarre Adventure.

Demon Slayer Mu Feng: After demons slaughter his entire family, Sakonji Urokodaki takes him in as a disciple. Now he is preparing to enter the Final Selection alongside Sabito, Giyu Tomioka, and Makomo. With barely a grasp of Water Breathing, can he really survive the Final Selection when he must face the Hand Demon?

JoJo Mu Feng: He lives in Morioh. Can he keep his family safe?

One Piece Mu Feng: An ordinary Marine forced to participate in the Summit War, he desperately wants to survive this brutal conflict. But with Whitebeard's Tremor-Tremor Fruit and the fighters arriving to rescue Ace, can he make it out alive?

With their abilities shared, Demon Slayer Mu Feng takes on the Hand Demon with the Sharingan and Water Breathing, JoJo Mu Feng pits Soft & Wet against Killer Queen, and One Piece Mu Feng shakes up the Summit War.

As more and more seats appear in the conference room, the once-weak Mu Fengs of each world share their strengths, rise to the pinnacle, and make right the regrets of the past.