"Ding. I'm the Shinobi System within your body. Since you had a life without meaning and never experienced joy or love, you were chosen to reincarnate in a different world."
Zane felt excited, knowing he had a new chance at life. After a few seconds, he asked about the system. "So what do you mean by 'Shinobi System'? What exactly are you?"
"The Shinobi System is a system that will help the host grow quickly and guarantee a life of glory. The host currently doesn't have a magic root inside his body, which is something that happens to one in a million cultivators. A magic root is the power of this world that helps cultivators train their bodies or magic to reach the peak."
"..."
Zane was speechless. "Am I any different from a cripple?"
"The host shouldn't worry. Since the Shinobi System is within your body, the system will generate chakra for you."
"...Huh? What is chakra?"
"The host should know that chakra is a power from the Naruto world. Haven't you watched the Naruto anime in your past life?"
Zane felt a surge of anger as he remembered his past life. "No. Do you think I had the luxury of time to watch anime? I used to work when children my age were playing." He felt like he hadn't lived a life at all; it was just a bad, bad, bad dream.
"Then, Host, would you like me to transfer information about the Naruto world directly into your brain?"
"Yes, please!"
After confirming, Zane felt a small amount of pain, but it wasn't too bad. He then saw images of Naruto as a child, joining the academy, fighting Sasuke in the Valley of the End, training for his Sage Mode and fighting Pain, the Fourth Great Ninja War, the entire ninja world teaming up to fight Obito and Madara, and finally, Naruto and Sasuke defeating Kaguya.
All this information took nearly two hours to transfer.
"Ding. Transferring complete. The host should now know about the Naruto world and chakra."
"Yeah, this... is actually powerful. So what else do you have?"
"There are five tabs in the system. You can see them if you focus your mind. They are: Status, Skills, Missions, Store, and Inventory. Would you like to check them?"
Without hesitation, Zane agreed. "Yes!"
Ding. Status
Name: Marco Corvin / Zane
Age: 19 / 28
Level: 1 (0 exp)
Attack Power: 20
Defense: 12
Agility: 6
Chakra: Locked
Bloodline: Locked
Skills: Locked
Affinity: Locked
Zane was shocked when he saw the interface in his mind. "Marco Corvin, huh? Is this the name of the previous owner of my body? And he's 19 years old."
"Yes, and it is also your name now, since this is your body from now on!"
"Oh, I guess you're right. Hmm, show me the Skills tab."
"Sorry, the Skills tab is currently locked because you don't have any trace of chakra yet."
"Hmm, then show me the Missions tab."
"Sorry, the Missions tab is locked. It will be unlocked once you get a chakra system in your body."
Zane was about to explode with rage; almost everything was locked. "Then show me whatever isn't locked..."
Ding. Store
An interface popped up in his mind, showing skill manuals, weapons, bloodlines, Tailed Beasts, and simple items from the Naruto world and more.
"Woah, I can buy all of these?"
"Yes, if the host has enough points, you can buy anything in the store."
"There are so many powerful things there! Oh man, even the Ten-Tails! I wonder if I can be its jinchuriki. Oh man, I would conquer the world with it! Hehe."
Having just received the information about the Naruto world, Zane was very excited.
"With a low level, the host would be swallowed in no time by the Ten-Tails."
"Ahahaha, I was just joking..."
"Would you like to see the Inventory tab?"
"YES!"
Ding. Inventory
It was like a game: an empty inventory with ten slots.
"The host can save any item from the store inside the inventory and can take it out to the outside. You can also save items from the outside into the inventory. With each level-up, you will get 50 more slots for your inventory."
"That's quite useful! By the way, what is this level system I saw in the Status tab, and why were so many things locked in the status tab?"
Zane remembered the level system and the locked things, so he asked the system.
"Each time you level up, the host's stats will increase, which will help with taijutsu. Also, with each level, the host will receive an extra 10% to their chakra points. As I said, raising your stats will power up your taijutsu; you only have to learn it first. And the more chakra points you have, the more jutsu you can use in fights. Running out of chakra is like running out of mana; you won't be able to use any jutsu after that."
"So what about the locked things?"
"The host currently doesn't have chakra, so you are unable to learn skills or have bloodlines."
"So how can I get chakra into my body, and hold on... I don't have any memories of the past owner of my body. Why is that?"
"The system will install a chakra network into your body. During this process, you will receive a little bit of the memory of the past owner of your body, each time until the end of the process."
"How long will it take you to install the chakra network?"
"Ding. 4 hours."
"Okay, then do it."
"Ding. Installing chakra network. Time left: 3:59:59."