As the rabbit disappeared , something hit Itachi in the gut with force of a speeding loaded van. Itachi flew back while spouting a mouthful of blood. Itachi had another lesson for awareness and flying today before he slammed into a tree with enough force to splinter both the tree and his back. Another mouthful blood dribbled down his mouth as he slid down the tree.

Cold sweat trickled down Jun's back. He never saw the rabbit move or what attacked Itachi. Next moment he activated everything he could to rise his sensing ability to maximum, against a being with that level of speed that was all he could do to counter. He found the rabbit hopping in place somewhere to his left. He immediately activated Observe Skill along with his Runic Eye.

[Boss : [Rabbit of Caerbannog] Level 30

HP: 13,500

CP: 11,500]

'The Boss is here finally..' Jun thought 'Oh god.. what have Konohagakure's founders wrought upon me this day?'

It was at this moment that Jun decided that the day he meets either Tobirama or Madara , the order of meeting didn't matter, but he definitely was going to kick their ass at least once no matter how long it takes. Granted it might be an Impure World Reincarnation Zombie, But its the thought that counts right ?

'Wait ..I am getting distracted.. where is that thrice-cursed rabbit?' Jun looked around but couldn't find it , when he felt a Killing Intent to his side 'OH SHIT'

Jun barely threw himself into a side leap in time to avoid a crazy speeding rabbit aiming to maul his face , the rabbit blew past his face with wind blasting his hair wildly. The demon rabbit tore through a tree behind Jun as if it wasn't even there.

Jun sent a bunch of Leaf Shuriken spiraling towards the rabbit but it instantly disappeared. Jun focused his Runic Eyes to maximum to catch the minimal of movements around him constantly kept spamming Observe Skill despite the ton of unrelated information flowing into his mind and giving him a headache.

[Observe Skill has leveled up to MAX]

[You can view Specialties/Perks of the target you Observe and range of your observation has risen.]

'Yes!!' Jun thought excitedly as he caught a glimpse of the rabbit speeding around , circling Jun. Jun's leveled up Observe Skill caught the rabbit's information. Jun kept running at max speed, while keeping the rabbit in his vision.

'How the heck is it moving between the trees so fast??!!' Jun complained as he viewed the rabbit's info

[Rabbit of Caerbannog] Level 30

HP: 3,500

CP: 1,500

PERKS

Unassuming Form - Its appearance belies its strength, making any who would approach its domain underestimate it.

Superior Chakra Beast - This beast is the alpha predator of its environment, because of its feeding on other chakra beasts, its chakra is unusually dense allowing it to rebuff any chakra weaker than its own invading its body.

'Bloody Hell!!' Jun wished he could scream and punch the one who created such a monster. 'If I survive this, then I am going to pay double the attention to Taijutsu and Development of my Sage body to new level. I wonder if I can activate Sage mode somehow along with Sage body or activate all my cells to sage chakra.. Well I will have to figure that out later. First I need to get Itachi away fro this monster.'

Jun dodged the rabbit's attack and tried to keep it distracted with a barrage of leaf blades swirling in the area. Using that as a cover, Jun quickly reached Itachi and left using Flying Thunder God while grabbing him. After reaching few tens of meters away from the rabbit, Jun made a temporary room and bed with a combination of Plant and Earth release Jutsu and created a few barrier type seals using Sealing arts and Earth Release barriers. Satisfied with his preparations to alert him of the rabbit, Jun went back to Itachi to look at his injuries. Although his life may not be in danger, but if not treated then the sequelae left behind with improper self healing might stunt his Ninja career. Jun took time to first renew the supply of Nature energy in body to the max possible in a short while. He then sent a focused chakra sensing pulse into Itachi's body. It took an hour for Jun to rejoin the broken muscles, tendons and ligament of his back carefully so as to not injure any of his internal organs. While he was almost done, Jun found a tiny black mass, smaller than the head of an earthworm stuck to the membrane of Itachi's lungs .

'The heck is that?' Jun thought as he sent the thinnest possible chakra strings he could make with medical chakra and sent them slowly towards the black mass. On contact, he slowly probed it with all the medical techniques he knew so far but kit gave minimal response. However when trying healing on the area around it, it somehow absorbed the healing chakra before it affected the area of lungs around it.

'Hmm.. some kind of vitality leeching chakra mutation in Itachi's body. I assume some genetic defect, however even if this is so small right now, I guess this is the reason Itachi died in original timeline. Now how to get this out..' Jun tried to think of a way to save his friend from his fate.

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After trying all sorts of methods , Jun finally devised a way. 'Delicate illness extraction can help , but n=may damage vitality and his organs while extracting this. I need to just ensure he gets a constant supply of vitality in his body during that.'

Armed with this information Jun had now a clear solution. He modified one of the medical jutsus he learnt from scroll of seals, slightly with use of nature chakra.

[Combining Nature Chakra into Medical Body Jutsu ... Combination Successful!]

[Nature release : Regenerative Body learnt]

Using this new Jutsu Jun managed to Give Itachi a temporary regeneration ability, while he carefully extracted the black mass with Delicate Illness Extraction Technique. Slowly and carefully Jun managed to free Itachi's body from it and infused Itachi with enough nature chakra as he could safely handle to recover quickly.

[Major Change to the world timeline. An Important Character's fate has been changed.

As the change is balanced between both good and bad, a single Tribunal Lightning will be sent to the user's location. Please decide the Location quickly withing the next five minutes. After that the Tribunal lightning will be struck.]

[User is advised to prepare as quickly as possible.]

'What the...??!!' Jun wanted to curse the world law a lot but he didn't have enough time for that. He quickly created tens of earthen domes overlapping each other around the room where Itachi was resting. He reinforced their density as much as possible using Nature Energy in a short while before rushing off to find the rabbit which was cause of everything.