Hint

"In first condition of it narrowed the clan amount. That means Uzumaki, Senju and Uchiha is the only direct descendant clan from sage of six path. From the second condition, the Uchiha clan removed from the qualifications and third condition confirmed not only Senju clan but also Uzumaki clan had people who used wood style in the past. Right Lady Naori?" Fugaku asked.

"Hmm I read some records I got from Tsukiho's mother Yuna Uzumaki. Put it in a summary, there were people who used wood style in the past. And they took wood style as an example to make Uzumaki sealing techniques as a substitution for non wood style users." Naori finished the dinner as she neatly put the chopsticks on the bowl.

"Uzumaki clan is amazing." Itachi said as he also copied Naori. Fugaku and Mikoto also nodded their head to admit that.

"Though I know they have a special kekkei genkai. But I never thought they are that amazing. As expected from Kushina's clan" Mikoto put her chopsticks aside.

Fugaku didn't say anything but he also silently agreed with her.

'Originally kekkei genkai passed down genetically. But there are some records who developed kekkei genkai by themselves. It includes Hashirama Senju, Rasa and four tails jinchuriki. So that mean it is futile even if you try to combine two chakra natures to develop kekkei genkai unless you have the certain gene for expecting kekkei genkai. Of course it is so obvious when great grandfather used Nativity of a world of trees just by transplanting First Hokage's cells. Grandma seemed to hint me something with her explanation. Did she mean that I have a slight chance to develop wood style in the future?' She emptied the bowl silently.

'Actually it might be very helpful to my future plans. But I don't have enough chakra for that yet. But may be in five or more years I can do that. It will definitely be a pain in ass to do develop a kekkei genkai. But anyway it is too early think about it now. Now I have to focus on fuinjutsu and others for next three years. There will be many incidents going to happen after two or three years from now on.' She drank the water.

After finishing dinner Fugaku asked Itachi to escort Tsukiho to her room. "Are you stay here tomorrow as well?"

"I don't know" she shook her head. "But she said next day before the night fall we will be leaving"

"Oh that mean it will be a long time before we meet again." Itachi's voice went down.

"Yeah, don't worry. I will write a letter for every two days. How about that?" Tsukiho placed her hands on the hip.

"But how are you going to send them?" He saw she signed him to come in so he entered the room.

She opened the bag and took a small scroll. In the middle of it had a small mark that was written with black ink. She folded it and gave it to him. "This is a courier message seal. Though this one is different from the normal way. It is more like a summoning. But we can keep my letters out from chakra barrier around the village. Ok never mind that details." She waved her hands. "This allows me to send my letters to you."

"How so?" He took the scroll and examine the sealing formula.

"It because I am a sealing master. Though still in the beginner level. Ya know" she looked away. "This is a advanced version of courier message sealing formula. More like a summoning formula but you don't need to use blood as a medium. I also has a sealing formula with me so when I want to send a letter all I have to do is write it with chakra. When I activate my side of the sealing formula you will get the letter from this side. Cool right?" She showed the hand signs with a proud expression.

"Then what is the courier message sealing jutsu?" Itachi asked.

"It is a letter with a small sealing formula. If you want to use that method, you have to know other party's chakra signature. When you write the letter you have to channel chakra along a writing utensil, the message will be visible to the intended party only. The paper will fold itself in to an origami critter and make it way to the other party. But this have huge downfall. Though others can't read the message they can prevent it from sending." She explained.

"A chakra barrier and physically catching right?" He guessed. "How much do you know about sealing?"

"I just started to learn C rank sealing after finishing D rank. Ya know" she scratched her head.

"Ok then I won't disturb you anymore. Good night sister" Itach slide close the door.

"Good night little brother" she smiled as she picked an empty scroll and the ink bottle with a brush.

She turned off the lights and turn on the lamp beside the table and she placed the things she picked on that and sat in front of the table.

She sighed after dipping the brush. Then she removed the excessive ink and started to writing kanji. At first she had a hard time to write kanji as proper as it should be. But she slowly adapt to kanji like her own language. Calligraphy wasn't a foreign subject to her. She had learnt how to copy others hand writing in the military training. So she had to sharpen her hands into getting down the way kanji were supposed to be drawn. As a former science student, using mathematical formula applications was rather easy. So after got some understanding about kanji and the nature of formula she knew what to do.

After finishing the sealing formula, she took a deep breath and looked for the mistakes. 'Not good enough, another one. Used too much chakra. Guess I can't jump straight in to B rank seals with my little knowledgeof seals.' She took the brush to her hand.

Then she felt her chakra wasn't enough to write another formula. She sighed and opened the door of her room. Seeing the darkness in the corridors in the country yard, she frowned. Then she felt the most of chakra signatures around her are stayed still. She slowly closed the door without disturbing other's sleep. 'So all of them are sleep. I am going to get some air. Danzo isn't here so there won't be a problem.'

She went to the garden through the window. The cold breeze touched her small body as she shivered a little. There still light outside of the house as there wasn't many street lights. Using her sensory ability she felt some chakra barriers around the whole compound. 'I guess before the nine tails attack, there is a heavy guard around the Uchiha compound. And the trust between Uchiha clansmen is really amazing. There wasn't even a slightest security around the house.' She looked at the park through the trees in the garden. 'Or may be they always ready for unexpected. How tiring. I guess it's good to be an Uzumaki. We have Uzumaki sealing techniques for this kind of problems.' She look at the moon. It was a half moon but it shined brightly. It reminds her how she looked at the moon when she went on missions at night.

She sighed and wondered how many problems will that beautiful thing bring up in the future. Then she felt a familiar chakra signature near the lake. "Huh?..."