[Host, this is your last free day. Tomorrow you need to attend the ninja academy and you haven't even try to practice this's body skills and abilities yet.] It sounded frustrated, how could it not be. It already reminded its host multiple times for these past two days but to no avail. The host wouldn't budge at all.

Hm, what do you they'll give me this time? She was talking about food. For these past two days, this body's watcher constantly delivered food three times a day. She would just enjoyed it as long as it available. She was not in the mood to went out.

[Host, please don't get distracted.] It thought that it would cry if it had a tear glands. So hard, other systems' host are obedient. Why did it get such rebellious and unreasonable host?

Alright, alright don't cry. What should I do if you cry?

She took this body's ninja gears then left the house and noted that two of her watchers were hiding a few meters away from her. From three to two watchers. She didn't know if their presence would be permanent or not but it was getting quite tedious to kept her act everytime she left the house.

She walked the path towards the nearest training ground inside the clan compound. Like usual, with only the sound of wind in the trees and rustling of leaves accompanied her short journey. She arrived at the designated place then started to stretch her new body.

The first thing to she needed to practice was projectile throwing. Kunai and shuriken, from her memories. She never used projectile weapon. Usually, the moment she had been summoned by some humans, they couldn't even stand her sight then died inexplicably. By the time she left, only destruction remained. So she never needed this type of training.

She took a kunai from her pouch and tried to hit the center of the target. Tuk. The result was okay considering she never did this type of activity, not too far off from the center. Then she used all of her kunai for practice. No worries, she was a master at doing the same thing for over and over again.

The result? She managed to hit the center with a ratio of eight out of ten. Satisfied, she waved off her hands. She previously didn't notice but it felt numb, she practiced for too long.

The next subject to practice was elemental especially fire manipulation - jutsu - her mind automatically supplied. The most basic one, the great fireball technique. She tried to summon her energy to create some inkling of fire. Nill. Zero.

[Host, don't use your own power to create the fire. Use this body's chakra to do this technique, don't forget the handsigns!] It helpfully commented. She was drawing her own power, it was only natural. Now she needed to constantly used this body's energy - chakra - something to be practiced until she didn't need to think twice before using it.

First, handsigns. Second, she needed to channel some chakra from her abdomen area to her chest then held it for awhile. Ugh, warm. Third, she released said energy through her trachea to her mouth. Fourth, she held her breath and tried to continuously supplied some chakra to create the fire.

The size itself was rather big, five meters in diameter. It almost took all of this body's chakra. What a waste of energy, I want to rest.

She had done her practice then hurriedly went home. She found another meal, this time with a note. 'This is the last time.' She took it then went into the dining area.

[Host, tomorrow your acting skill will be tested!] It sounded way more excited that she actually was.

That doesn't sound very appealing to me. Can I just skip this?

[No, that will be an OOC behavior. This body's original owner was a diligent person. He won't miss his class just because of a whim.]

What does OOC mean anyway? I think I know from your context but I need an elaborate explanation.

[Out of character behavior.]

So, as long as I can justify that my behavior is not out of his character. I can do anything?

[...yes] The system felt that its host was digging a pit for it but didn't know the specific.

She had been lying on her back while talking with the system when a third voice suddenly joined in her head.

'Who are you talking to?' Very solemn and subdued voice sounded. This voice probably belong to a male type of human.

... She silenced her thoughts.

[...] The system was the same.

'Well, can you aswer me?' He asked again, this time the voice sounded more firm. More here than there.

I was talking to myself. This time I need to ask, who are you and why do you suddenly appear inside my head?

'I don't know, the moment I regained my consciousness I already here, hearing you talked to yourself.'

I can smell your lie from miles away but I won't pursue. Just don't surprise me by suddenly talking without a prompt then I won't bother you either. So, don't talk. I want to sleep.

[...] The system that was ignored.