"Sandaime" Kakashi greeted when he arrived the hokage's office after being summoned. "Oh yes Kakashi, Erza will be under Hiashi Hyuga and Tsunade Senju's care. She will be training under Tsunade so she can be of use for konoha in the future that we might need her to protect the village or herself of possibilities. The village elders agreed to take her in as one of us and be a shinobi, her rank will depend on her performance during and after her training." Saroutobi explained. "That's sounds like a plan" Kakashi answered thinking for himself that this means he can be with Erza. "You don't need to watch over her, you won't see her in three months and you'll be reinstated to watch over her after the program" the old man instructed. kakashi felt a sudden pain in his chest, damn I will sure miss her. "At the time being you will go on a mission alone. I'll have Yamato cover team 7. I need to you to investigate on how Erza opened the portal and her world, the village elders concluded that if we combine Kamui, hiraishin and chibaku tensei we might be able to go to her world and of all people you are the only qualified jouni nfor it. Your sharinggan can use kamui and Minato taught you hiraishin didn't he? And I know you will find a way to learn how to use chibaku tensei" he concluded.
Kakashi went back to the seemingly magical clearing in the middle of the forest during team 7 mission on the day they found Erza. The place looked like a normal clearing now, still beautiful but less magical. He went towards the huge rock where he found her sitting that day and examined it. He found a small crystalline like substance with rough edges and transparent glass like color. He examined it and found seals around it that looked like a magic circle that Erza is using during her reequipping. He tried to infuse some chakra into it and it reacted. The crystal glowed as if it welcomed the light in some embrace more than took it though so passively. The colors that shone in the brilliant light of day were a richness only nature can bring, a different sort of glow than the golden pools of streetlights. It was somehow more than light and molecules in that moment, as if together they were something greater than either could ever be alone. The magic circle and seals were activated, his eyes widen he pulled up the cover of his left eye and revealed his sharingan "Kamui" he said a spiraling void that targets swirl into the vast air he made few hand signs and said "chibaku tensei"
He found himself standing at the front of an enormous door with a symbol on top. He brushed his chin as he looks around. "This sure is not Konoha and that symbol sure looks like what is on Erza's arm." he smiled "So I did it, I'm in fairy tail" He said and opened the door. The place was crowded, there are people drinking, some gambling, some eating and some are arguing. His boring face pointed towards the two mages who are fighting the shirtless black haired guy and the noisy pinked hair guy with a girl with long dark blue hair trying to stop them a yellow blond female with a face palm and a girl with wavy blue locks with her love eyes towards the shirtless guy. "I think this is Erza's team" he chuckled. He went passed them walking with his hands on his pocket towards the bar with white haired female bartender. Everyone was looking at him with suspicion. "Excuse me" he said with a faint smile "I am here for Makarov, the guild master" he asked the bar tender. It is a good thing I remember all Erza's stories he think to himself. "Oh sure" she said calling for him "Master!!! Someone is her for you!!" "Yes, what can I do for you?" a voice said. Kakashi went towards the direction but seen no one and he looked around and he seem to not find anyone and looked back at the white hair with a questioning look and she just smiled "I'm here" he clears his throat. "I'm the guild master Makarov Dreyar, you requested for me" the short old man asked. "Oh yes, my name is Kakashi Hatake a jounin ninja from the land of the hidden leaf called Konohagakure, I am here to discuss matters concerning Erza Scalet" He explained. The guild halls chaotic noise and hustle came to silence as they stare at the ninja. The two stopped fighting and team Natsu ran towards him and surrounded them.
"Where's Erza, is she with you?" Natsu asked while looking around "Nope she's not, She is on a special ninja training with our legendary sannin as her technique inheritor, it is only being handed down to one person per generation" He explained "how can I be sure this guy can be trusted?" Gray asked him with irritation "Well, I know something about you as Erza always talks about you and I see you still have that old stripping habit huh Gray?" he said with confidence. The shirtless guy pouted and looked away. He faced the blond stretching out his hand "You must be Lucy" she shook his hand "how are you doing Wendy?" he turned to her "I'm fine, you seemed close to Erza sama" she smiled and shook his hands "Yes, we are" he answered slightly blushing "With you expression, even your face is covered I can see you blush don't tell me Erza and you are together?" Mirajane concluded "That's impossible, Erza can't pick this guy, besides there's Jellal and--" Gray didn't continue. "And you of course Gray who wouldn't notice the thing you have with Erza, only she does not seem to notice" Mira added and the girls chuckled in agreement and Gray's face turned red. "I heard you are her best friend and she talks a lot about you" Kakashi spoke scratching his head not denying the thing with Erza as the feeling of jealousy and annoyance towards the black-haired mage stir up. The old man cleared his throat to get their attention "So, what brings you here Kakashi and when will Erza come back to us? She is not only a daughter to me but she also plays a very important role in this guild- her being an S-class mage and the leader of Team Natsu"
Kakashi nodded and placed his hands on his chin. "May I speak with you privately" He asked politely. The old man led him upstairs that has a warning sign that said "Restricted Area: For S-Class Missions only" he looked a round and saw a spacious room with two tables with chairs and a mission board that has posters and a board that has pictures of S-Class mages hang in there. He scanned it and saw names Mirajane Strauss, Laxus Dreyar, Gildarts Clive, Mystogan and Erza Scarlet. on the other side was a huge portrait with curtain and she saw Erza's picture that says "In honor of Titania- the Fairy Queen" She sat in a royal throne with a sword in her hand and the fairy tail flag in each of her sides. Kakashi was amazed on how important she is to them and blushed as he saw how beautiful she can really be.
"Now tell me what it is you want to discuss about her" Makarov pulled him back to reality.