A couple of weeks after Team 5 and Team 10 left on their Mission, Shizune, who was naked as the day she was born, was straddling Enma's lap, squeezing his length inside of him, and hugging him as if her life depended on it.
Her body spasmed from time to time, experiencing the aftermath of the powerful orgasm that had rocked her senses.
She planted kisses on his neck as his right hand stroked her back, so gently and with care that her heart was overflowing with sweetness.
"Go on, use it." He whispered near her ear when her mind finally regained clarity, and she felt his Chakra Chains enter her back as soon as she activated her Cursed Mark.
Even though she was very surprised at the speed at which her low Chakra Pool was filling up again, she was way more surprised at how sharp her senses became.
"Ready?" She heard him gently ask, and she bravely nodded her head.
As soon as his Chakra Chains left her body, an extremely sharp pain rocked through her body, almost as if her blood was on fire.
Enma grunted as her walls tightened around him in a vice grip, and her nails dug right into his skin as she tried to cope with the pain.
Seals spread all over her body, and there was a glint of madness in her eyes, which he could see even without looking at them.
He stayed silent even as she reached her limits and touched the line of insanity, and she did not let him down.
Shizune quickly regained control and fought her urges, and she was able to deactivate the Cursed Seal of Senjutsu on her own.
She was physically in the best shape, but mentally, she was exhausted, and he gently grabbed her ass and squeezed it as he started guiding her up and down his length.
"I am proud of you." He said and planted a kiss on her cheek, and she failed to hold back her tears and just hugged him.
She did not ask him to stop even though she wanted nothing more than to sleep, and just softly moaned near his ear as he helped her to an orgasm and inseminated her once again.
"Don't leave." She whispered when he separated from her and laid her down on the bed.
Enma smiled at her and placed a kiss on her forehead.
"Rest. I am just going to eat."
"You will come back?" She softly asked and smiled when he nodded his head.
Shizune fought against her mind and managed to stay awake until he returned to the room and joined her in the bed.
She then rested her head on his chest and quickly fell asleep.
Enma too was tired and wanted to sleep, and with her comfortingly warm body in his arms, sleeping was something he loved even more now.
The next morning, after their morning exercises and a delicious breakfast, the two left for work.
Enma had been tasked to inspect the Barriers of the Village and help the Barrier Team, and for the entire day, he visited all the Barrier Team Units and made sure that everything was perfect.
When he arrived at the Konoha Hospital in the evening, he found Tsunade chatting with Shizune and Sakura on the lawn.
The pinkhead brightly smiled his way, and even though he had not spent a lot of time with her ever since his return to the Village, she was not sad.
He had visited her on a few nights and helped her with her studies as well.
And it was because of him that she had managed to catch the eye of the Hokage now.
Only Sakura knew how happy she was today, and as soon as he came close, she jumped on him and tightly hugged him.
"You seem happy."
"Tsunade-sama has accepted me as her Apprentice."
"Oh, that calls for a celebration. We should gather everyone who's here, and you are paying."
"Yes!" She happily nodded her head but then blushed hard when the Hokage cleared her throat.
"About your apprenticeship, it will only be given to you if you pass the Trial and reach the standard that is required to learn what I have to teach you."
At her words, she instantly became very nervous.
"Starting May 1st, you will be Training under Enma's guidance, and you will have five months to reach the threshold that he will set for you. In fact, I will give you six months for it, and you will do everything he says without a question. Understood?"
Sakura was stunned after learning that she would be becoming Enma's official student for the next six months, and she had to give it her all to not scream out in excitement.
"Yes, Hokage-sama."
"Also, I will only start teaching you once you pass the Chunin Exams. If you fail them, your Apprenticeship will be cancelled."
The words poured cold water over all her joy.
Passing Chunin Exams all depended on the Team and the collective performance, and she became nervous when she thought of Mito.
"Yes," She obediently nodded her head.
"Good. You may go now."
"Thank you, Hokage-sama." She deeply bowed to her and then looked at Enma.
"Day after tomorrow?" He asked.
"Perfect!" She knew what he meant and happily nodded her head.
After sharing a quick hug with him, she ran to her home to inform her parents about the good news.
"She's very confident." Shizune smiled, and Tsunade smirked.
"Yes, but that confidence is in Enma's ability to teach her and get her ready."
The Uzumaki felt a little awkward at her words.
"She's very hardworking, and her confidence also stems from it."
"Is that so?" The Senju glanced at him and then walked past him. "Come with me." She said to him, and Enma smiled at Shizune and told her to start her Exercises if he was late.
The raven-haired lady smiled at him and then rushed towards the Forest of Death.
As for Enma, he followed Tsunade to the Hokage's Residence.
"Her Chakra Pool has grown even bigger in the last few days, and remarkably, she has indeed reached the threshold of the extreme Chakra Control."
"She has worked very hard, and I am going to help her improve some more for the rest of the week."
Tsunade nodded her head, and as soon as they entered the residence, she dismissed the Anbu and took him to the tea room.
"Tell me, would the Cursed Seal of Senjutsu benefit me?" She asked when they were all alone and sat down at the chabudai as she served him the tea.
Enma, who had taken off his blindfold, surprisedly looked at her.
Her face gave away nothing as he stared at her, and then he furrowed his brows and smiled.
"It will be, yes, but if you really want to do this, I am going to make your seal of Senjutsu a little special. However, know that it will likely be a lot more painful, and a lot more difficult to master it."
"The benefits?"
"Unknown, but I presume they will be very useful."
"You are going to use me as a test subject?" She narrowed her eyes at him, and he felt a little embarrassed.
"Only if you agree to it."
Tsunade stared right into her eyes and then lowered her head.
"Fine."
Enma's smile ceased at her answer, and he frowned.
"Is something wrong?" He gently asked her, and her body trembled at his words.
"Yes."
"What?"
"I am not strong enough." She lightly said, and then then took a deep breath before smiling. "And now that I am truly young again, I want to focus again on growing stronger."
Enma kept looking at her and then smiled.
"Fine. I will help you."
"Give it to me now." She said and stood up, downing her cup of sake in one big gulp. "Or do you need to return to Shizune's side to oversee her training?"
"She will be fine. It's the same drill." He said but still created a Shadow Clone, who instantly flickered away towards the Forest of Death.
Tsunade smiled at him and then led him to the Sealing Room which her Uncle had set up when he built this residence.
"What do I have to do?" She asked once they entered it and she activated the barrier, preventing people from spying on them.
"You will have to take off your clothes. All of them. And lie down on that stone altar."
Tsunade froze at his words, and despite herself, she blushed and also got a little upset with him.
"Did you do the same with Shizune?"
"Yes. I need to draw seals over your body."
"What seals?"
"Unique Seals of your Senjutsu Seal that will spread all over your body when you will activate it." He smiled and activated Zennogan. "I can already see all the seals on your body, so, you don't have to worry about them interlacing."
"Is sleeping with Shizune also part of your training?" She asked, and he was taken aback by her words.
Tsunade walked close to him and grabbed him by his collar, pulling him closer to her, and looked right into his eyes.
"If you harm her..."
"I won't." He sighed and stepped back as she let him go. "It's not part of the training."
"And do you know that she is a lot more serious about your relationship than you are?"
"Yes..." he lowered his head and nodded.
"I will not forgive you if you break her heart."
"I won't." He sighed, and she nodded to him before she started taking off her clothes.
Tsunade kept a keen eye on his expressions and was both relieved and restless to see no change in them as he looked at her nakedness.
She, however, did not say anything and obediently laid down on the stone table.
Enma then approached her and weaved a series of hand seals, and then his Chakra Chains exited his back and entered her body.
Once he was done performing the Hand Seals, he sliced the tip of his fingers, and then merrily started drawing seals on her body with his blood.
Soon, those seals started extending around her on their own, forming patterns which she could not see but feel, and then, finally, he planted the Seal of Senjutsu right above her naval.
"She noticed him use a strange chakra as the catalyst, just like Orochimaru used that Demonic Clan's cells."
"What is this?"
"I don't exactly know, but these cells are likely from of one of your ancestors, who was proficient in both Sage Art and Yang and Yin Release, and possessed a special form of Sage Mode, which may and may not have belonged to any Sage Beast Clan..."
"My Grandfather..." her eyes widened in surprise, and then she narrowed her eyes.
She knew about what Orochimaru had done, and she frowned.
"Where did you get it from?"
"I am sorry, but I can not answer. However, I can tell you that I did not disturb any graves." He lightly said, and her eyes softened.
"What do you intend to achieve?"
"I don't know, but something good. The cells do not only belong to your grandfather but also hold a strange and powerful catalyst for Sage Art. As well as the Chakra Combination of all the nine Tailed Beasts..."
Tsunade's eyes widened in shock.
Enma smiled at her, lying a little since he did have a source in his mind. His Aunt had gathered these cells from the arm of Danzo.
He, however, was not sure how Kushina had gotten her hands on the Chakra of all the Tailed Beasts, and if he had not seen her give Izumi a similar Senjutsu Seal, he would have not gotten this idea.
She, however, had not used Hashirama's cells in Izumi's case, but her own, but since he had not yet achieved Sage Mode, he could not use his cells in the same way.
Besides, these cells were highly compatible with Tsunade's cells, so, it was the perfect catalyst.
"Brace yourself, and try not to move too much or I will be forced to tie you up. Also, don't lose your consciousness." He said to her, and she took a deep breath and nodded her head.
"Aaaahhhh!!!!"
The pain that assaulted her as he bound the Seal was something she and never experienced in her entire life. And she had experienced a lot of physical pain.
It was almost as if every single cell in her body was burning, something piercing her bones like needles, and her flesh felt like it was melting.
After what felt like an eternity, her Seal of Senjutsu was finally complete and all the seals he had drawn on her had receded into that one set of Seals.
She panted heavily as her body ached everywhere, but now she felt like she had just come out of a very hot sauna.
Enma gently helped her up and then handed her a wet towel, which she used to slowly wipe her body off all the sweat.
Tsunade looked at the seal on her stomach and smiled when she saw that it was the same as Anko's seal, except that the circular seal was like a ring of flowers. It was pretty.
"Interesting..."
She curiously looked at him when she heard his whisper and found him with his brows furrowed.
His Chakra Chains were connected to her back, and they were constantly blinking.
"What?"
"Can you briefly activate the Seal?" He asked, and she nodded to him and braced herself for the pain.
And it hurt, as expected, but the pain was nowhere what she had already experienced. It was very bearable.
"Fascinating..." he whispered again, and there was a hint of joy in his voice. "That's enough. You are not ready yet."
Tsunade, who was about to lose herself to the new sensory sensations, immediately deactivated the seal, and was immensely relieved to see that she was in complete control.
"So, what have you discovered?" She asked as she stood up, handed him the towel and turned around.
Knowing what she wanted him to do, he dipped it in the water, squeezed it, and then wiped her back clean.
"I won't spoil it too much, but you will find it easy to master all nature transformations, and your Chakra Pool has already started to grow."
"So, I can master Wind too now?"
"Yes."
"Not bad."
"I am sure you can already sense your natural healing rate that is increasing, and then your Yang Release..."
"Yes."
"You should start training soon."
"Relieve me of my duties as a Hokage then." She smirked, and he sighed.
Tsunade blushed a little when he wiped her ass cheeks and then her thighs and legs, but when she looked back at him, she still did not find anything strange in his expressions.
She even questioned her beauty, but soon shook the question off as this was exactly how things were supposed to be.
"Thank you."
"You're welcome." He smiled and then politely excused himself and left the Hokage's Residence to find Shizune, whom he terribly needed right now.
He has never seen someone so beautiful when naked as Tsunade... and the fire in his loins was hurting him now.