From what Kira had heard Ibiki say in his sleep Iruka was now a teacher at the academy. From where she stood at the gates of the academy she could sense his chakra from a second story classroom. She noticed a large tree next to his classroom window; which was open. She thought about it and decided to surprise him.
Kira slowly yet carefully hid her chakra, to the point where it didn't exist, then carefully and silently jumped up to the branch outside the window while staying in the shadows. She heard him talking to his class about writing nuclear reaction equations.
Geez what's he thinking?! Kira fumed as she listened to his lecture, He talks even more than he used to!! I feel sorry for those kids. Might as well break up the party, she thought as she walked to the window and jumped onto the sill.
When she saw the class she felt mad at her old pupil, "Hey Iruka!! You might want to stop and introduce me to the class, or should we practice your fighting techniques? Not that you could beat me anyway," she said leaning against the window frame, when the class heard her voice they all looked to see a woman with silver hair and a great body. Iruka looked at the person who had interrupted him and saw known other than the girl who had stolen his heart all those years ago.
"It's good to see you sensei, I've really missed you. Class I would like to introduce one of the greatest prodigies of Konoha Kira Hatake the Demon Wolf of Konoha," at the announcement of her nickname all the student's gasped and ran over to her as she jumped into the classroom.
"Hey is it true that you were the best and youngest ANBU ever?" "Where's your tattoo?" "Is it true you were the youngest Jonin?" All the kids asked at once crowding around her.
"If you would all go back to your seats and raise your hands then I'll answer your questions. I hope you don't mind Iruka," she asked as the kids raced to their seats so she would start.
"Not at all, I'm just glad to see you Kira-sensei," Iruka said giving her a quick hug before walking to the side of the room to watch what his class would ask the legendary kunoichi.
"All right whose first? How about the young man in the yellow shirt," she pointed to someone in the third row.
"When did you graduate from the academy?"
"Good question, well from an early age I was trained. I entered the academy when I was three and graduated the next year. After six month's I was able to enter the chuunin exams, I won the title and a month later I became the youngest ANBU. I was an ANBU for eight months before becoming a Jonin elite. After a few months I was given my first team, at the time I was only six years old. Now I know that that's more than the question implied but I just wanted to clear my educational past. Anymore question?" almost immediately everyone's hands went up.
"The young lady in the red shirt," she pointed to a girl in the front row.
"What happened to your ANBU tattoo?" she asked pointing to Kira's left arm.
"Oh well you see since I left to go on my international training I had to hide everything that indicated I was the Demon Wolf, including the tattoo. You see the day I left the third Hokage gave me this bracelet that had a concealment charm on it. Here let me show you," she said as she leaned against the desk behind her and unclasped the bracelet putting it on the desk before turning to her left showing everyone the tattoo.
"Kira-sama how old are you?" a pair of twins in the back now asked, Kira looked at them thoughtfully before answering.
"Well I was eight when I left the left sixteen years ago, how old do you think I am?" she said cheekily, everyone stared at her before yelling, "YOU'RE TWENTY-FOUR!!" "Yup."
For the next half hour she let the class talk while she talked to Iruka.
"Kira where have you been all these years?" Iruka asked in a voice she had loved ever since he first used it to address on their first valentines together.
"Iruka it's good to see you too but as to where I've been, well that's a long story and one you'll hear soon. Anyway there's going to be a meeting soon," Kira said facing him with kindness in her eyes.
With a small nod to Kira Iruka faced his class and cleared his throat to get their attention, "Class calm down and listen," when he spoke the class gave him their full attention although they looked Kira ever now and then.
"Okay class will be dismissed due to a meeting that I must attend. Even though you're being dismissed early I expect you to train at home, class is dismissed," everyone got up and politely said good-bye to Kira and Iruka before walking out the door. As soon as they were alone Kira walked over to Iruka, took his hand and performed a transporting jutsu.