" Who is someone much more feared than the Akatsuki?" Sakura asked.
" I'm not quite sure." Tsunade said. " But for Naruto, he really needs to be careful."
Meanwhile, back at the dimension, Naruto is already at the library, taking a deep research about the other kinds of ninjutsus, taijutsus and genjutsus.
" This library gives me an advantage." Naruto said. " Maybe, I could learned all kinds of jutsus just to prepared myself against that mysterious ANBU guy."
Until Naruto found a book of all kinds of jutsus.
" This is the book that I always see all kinds of jutsus." Naruto said. " Time is tissue."
Later, Hinata showed up.
" You worked harder Naruto." Hinata said.
" I just want to prepared myself for a rematch against the unknown ANBU ninja that attacked me earlier." Naruto said. " I must not lose my concentration."
" Lady Tsunade said that the unknown ANBU ninja is already being carefully watched under surveillance. " Hinata said.
" It'll better be." Naruto said. " Who knows what kind of dangers that he brought here upon the Leaf. I can't be complacent because the unknown ANBU ninja is a real threat to me."
" This might be a dangerous situation." Hinata said.
" Hinata. We still don't know when will this unknown ANBU will attack again." Naruto said. " I still want to know about his evil plans and must be foiled it before he would do any more harm." Naruto said. " I hope Shino doesn't suffering malaria."
Hinata deadpanned.
" Why would Shino get ill so fast?" Hinata said. " Even though he loves beetles but he hates mosquitoes "
" I hope he will not get infected by yellow fever." Naruto said.
Meanwhile, Yugito and Fuu were already acquiring new powers of both sharingan and rinnegan as the portal appeared out of nowhere.
" Are you ready for this?" Yugito asked.
" Let's save Naruto." Fuu said.
Now Yugito and Fuu were entering the portal.
Meanwhile, in the middle of morning, Naruto is training all by himself in the fields as the Masked Black Menma appeared out of nowhere and attacked Naruto from behind.
" You again!!!" Naruto exclaimed.
" I want your nine-tails." Masked Black Menma said. " To create a world full of darkness."
" Are you planning to corrupted this dimension? " Naruto said. " That's never gonna happened!"
Then, the battle started as Naruto and Masked Black Menma were started battling each other.
Meanwhile, Shikamaru reported to three Hokages.
" The masked man is back!" Shikamaru said. " He's battling Naruto!"
" Call the other shinobis and aid some assistance for Naruto!" Minato said.
" I'll go help Naruto." Kushina said.
" Go, Kushina!" Minato said.
" I'm on my way." Kushina said as she teleported.
Meanwhile, Naruto is struggled to fight off Masked Black Menma.
' Wind Style: Rasenshuriken!' Naruto said as he throws the Rasenshuriken at Masked Black Menma. But Masked Black Menma absorbed Naruto's rasenshuriken.
" He absorbed my Rasenshuriken!" Naruto said. " Well then, I should go on a close range taijutsu combat."
Naruto goes hand-to-hand combat against Masked Black Menma.
" I read all about your moves." Masked Black Menma said. " Probably, you will never get out of this dimension forever."
" In your dreams." Naruto said.