In one world Aizen has his back against the wall after his plans failed while in another Orochimaru in the similar situation. In last ditch effort, he attempts a experimental summoning which summons Aizen. From there the two form a deadly alliance

After releasing the Edō Tensei, Itachi welcomed his final death with gladness, hoping the afterlife will bring an end to the tortures and pains his life as a ninja brought him. ... Only to find out that the afterlife was nothing like he had expected.

Narrowly avoiding yet another annual 'Fox Hunt', young Naruto finds refuge in the Forest of Death, where he discovers something that will change his life forever major civilian council Sasuke Minato and Jirayia bashing minor Kakashi and Hiruzen bashing

[Universo Paralelo] Tras ese accidente que afecto las chicas, otorgándoles poderes que ni ellas ni sus enemigos podrían comprender, lograran Naruto e Ichigo y sus amigos acostumbrase a esta locura y no perder la cordura con el tiempo. Harem

A former captain of the Thirteen Court Guard Squads, Naruto gave it all up to save his friends son. Now eighteen years later, he returns to Karakura Town. There, he sees a familiar face, and he is drawn back into the world he walked away from. He must regain everything he lost to protect what he holds dear, all while guiding Ichigo down the path of the Soul Reaper.

For over 100 years, he has stayed sealed for what he's done. For over 100 years he could only stay silent as the Soul Society went through crisis after crisis. For over 100 years he couldn't even see the one person he's wanted to see the most after all this time as well as the one person he didn't want to see. Until now (Pairing single or harem undecided)

Ryuji Kurosaki, Ichigo's twin, finds himself intertwined in the world of Shinigami when he and his brother become substitutes. His existence is threatened when incidents from his forgotten past are brought back. [ This is a Harem story. I put Sasuke and three women as only allows 4 characters.]

In an attempt to throw a wrench in his master's plans, Gin kidnaps the Kurosaki siblings as children, and tosses them into a Garganta. The results however, were not expected. They find themselves in a whole new land, separated and lost. Can they adapt to, and thrive in this new world they find themselves in? Can they reunite before the perils of the times catch up to them?

He got a chance to live another life in another world, where he got reincarnated. He died in his duty to protect Konoha. He had no regrets and enjoyed his peaceful life until he got drawn into another war and the fights of Shinigami, Hollow, and Arrancar. Naruto will do everything he can to help his new friends and allies. Rated M for Violence and Mature Content

Madara dies at the Valley of the End. Now a Hollow, he is thrust into an unfamiliar world. Some want him dead and others want to exploit him for personal gain. Relationships will be forged and severed, and entire worlds will shatter by journey's end. Will the Uchiha's curse of hatred consume him? Or can Konoha's will of fire transcend the boundary of mortality?

"A new world, huh? All right, I use this opportunity to enjoy the peace." Naruto Uzumaki knew he would be drawn into conflict sooner or later, but he would do his best to remain on the sidelines of the conflicts of the world he was reborn into. But being one of the last living Quincy would bring problems sooner or later. (Rated M for Violence and Mature Content.)

A world where Naruto Uzumaki unintentionally interrupts the natural order, and has to figure out how to live in the world of BLEACH.

Training to become a badass, check! Kicking the ass of another Ōtsutsuki, check! Taking a space-time beam head on, check...wait a second! "Finding himself in a land of sand, this young shinobi is about to face something he really wasn't prepared for!

Passing beyond the veil, Itachi finds himself in an afterlife that is far from the hellfire he'd steeled himself for. With a chance encounter involving a pervy sage, a Flash Goddess and a healer whose angelic appearance hides more than a hint of steel, the bane of the Uchiha Clan finds a chance at a second life... and perhaps redemption. Slow burn. M for language and violence.

Rukia couldn't believe her eyes when Naruto appeared and saved Ichigo from Renji and her big brother. "Yo, I decided to help." Naruto and a few of his comrades will help Ichigo grow strong enough to protect his precious people. Naruto chuckles when he thinks about all the chaos he will trigger because of his actions. "Let's see where this goes." (Adopted Story)

In the five elemental nations, Warriors were classified under 3 distinct disciplines. The Shinobi, The Samurai, and the Shinigami. Most warriors followed one path, while the truly elite could boast the skills of two. Join Naruko Uzumaki As she sets out to master all 3 disciplines, and become the Hokage who will live forever in the history of the Shinobi world. Full summary inside.

Ichigo was about to get killed until a long-forgotten captain showed up and protected him. No one remembered him, but soon, everyone would remember the existence of Naruto Uzumaki, the former 7th Hokage of Konohagakure, Jinchūriki of Kurama, Captain of the 2nd division, and potential head captain. Naruto will rise once again and fight the enemies who will appear.

Returning to Wave after being snubbed by his sensei for his teammate, Naruto explores a secret structure he found on the way to the bridge confrontation, opening the door to a new world of possibilities for his future, gaining something once lost, and many allies in the wake of revelations a forgotten past, enemies close than you think, and the teaching owed to him from the beginng

After thousand years of imprisonment, Aizen successfully executes his plan to reincarnate. However, the Hogyoku has its own agenda, and Aizen finds himself in the Naruto universe, inhabiting the body of a young Sasuke Uchiha. Witness Aizen being Aizen and observe the profound impact he makes on the Naruto universe.

While Soifon growing up all she knows is that she was from a low ranking family of the soul society not knowing her true past or abilities or her family. What would happen when she learns during the on coming years.

The fate of the world lays between two hands, the hand of Yin, and the hand of Yang, how

It only takes one match to burn away the darkness. A single spark becomes an ember. An ember becomes a raging flame. Go ahead. Strike that match. Burn bright. Love hard. Laugh loudly. A wayward shinobi wakes to finds himself trapped in a world of perpetual night and sand. He's not dead. No. Surely not. He can't be...right? NarutoxHarem. A long-awaited return to Bleach, of sorts.

Naruto is sent to the Soul Society after Shion's prophecy is fulfilled. His memory erased from his previous life, Naruto embarks on a new journey, alongside fellow Shinigami such as Ichigo Kurosaki, Rukia Kuchiki, and Renji Abarai. With the Kyuubi no Yoko as his sword, can Naruto overcome being known as a washout and become the greatest Shinigami to ever live? Harem.

Death and destruction mean nothing to a creature that has become truly immortal

He is a sage forced into a deal with the shinigami.