Back inside the studio but Haruhi teleported everyone almost everyone who are there with him and he returned to his tech huge room where he had worked alone himself but he had two great friends from genius friends from Korea.
Haruhi: sorry guys I'm late I had some pick up someone who want to see my tech workplace and here is my sister Kaki Haruka
Kaki: hello nice to meet you, nii-san friend
Fujiwara: what the hell is going on here? And why did we teleport back to your tech room building
Later Haruhi friend had to show Kaki some of a few things that he had created something on scratch with some of the garbage to put together into one piece at a time.
Jaemin: Yo! Kaki, do you want to give a try with this thing I create it myself
Kaki: wait...it is dangerous and can I try it nii-san
Haruhi: of course, you can try it Kaki and I want to talk a small business with him have fun
Once Haruhi had walked off and let Kaki have fun with Jaemin's tech future thing on the object that he had prepared for her to come back here with everyone with her to try it out.
Hoshi: what's up boss and did you want to talk to me about what here?
Haruhi: I want you to make something like an anti-dark matter for me but keep a low profile between us can you do that
Out of the blue, Hoshi had to nod to his boss and he had to keep running away from his boss to go and find something to start the work that he need to keep doing that before he had done completely 100% working fine to test it out on Ichinose Miku body without her knowing it from Haruhi Haruka.
Haruhi: so Kaki how is your feeling like testing the thing that Jaemin created of his tech
Kaki: is working so well but I think his creation is the same as Kosaka Marino's past tech that she made the heal potion with Kira
Jaemin: wait...are you talking about both of them here right now are you joking with me, Kaki!!
Suddenly, Jaemin and Hoshi are showing them that they were following their tech work step by step in their free time while Haruhi wasn't at the workplace went he came back to see his sister Kaki Haruka at her studio.
Hoshi: I am a huge fan of both of your work Kira and Marino
Kira: thank you and both of you are great partners to each other
Jaemin: thanks but can we have your autograph?
Meanwhile, Hoshi and Jaemin take out his tech future tablet to get their super huge fans of her work that they manage to have great success in the past self of creating her first heal potion that they do to help Ichinose to restore her body from destroying herself and ruin her idol career as well.
Hoshi: I'm sorry boss your top secret project had almost finished but can I talk to you in private please about the project
Haruhi: sure of course please lead the way Hoshi
Kaki: wait...nii-san where are you going with Hoshi?
Out of nowhere, Haruhi and Hoshi disappeared right in front of Kaki who are start to follow them from behind but went she looked at where they had gone to from here.
Kaki: nii-san where are you!! *panicked*
Ichinose: Kaki...what did happen with Haruhi and Hoshi they did go somewhere else right?
Kaki: I don't know but I think they had to go back from the year 2023
Right before they had to teleport back from the year 2046 to 2023 and they can see that Haruhi had lying on the ground with cover by something on his shirt it was red and black blood colour of his blood type but Ichinose was kneeling and used her glove to touch the blood and she smelled them but it was from someone who had to trust him so damn well but at the end he gets killed by his traitor.
Ichinose: Haruhi...who did this to you?
Haruhi: it was...dark shadow who did this to me and he killed Hoshi but he give me his project that I need to eliminate by someone from here
Ichinose: who did Hoshi say to you that needs to eliminate from
Suddenly, Haruhi take out Hoshi's final project from his hand and he did inject that thing from himself but he didn't want to get Ichinose dead again once last time but he have to save her this time but Kaki can see her brother was feeling strange all this time with his mess mind.
Kaki: nii-san wait...what are you doing with yourself again!!
Haruhi: Hoshi is dead and Jaemin had left us and he goes back to Korea and lost contact with us they all betrayed me *cough blood*
Kaki: please nii-san don't try to do something stupid here, please
Without any sound coming from Haruhi's mouth and he suddenly went crazy and he had to lose control of himself but Ichinose went to stop him from herself Ayame had to grab her shoulder and she was saying to her was.
Ayame: wait...Ichinose where are you thinking you are going to help Haruhi?
Ichinose: I promise you that I want to help Kaki's brother to calm down but if not I get both of us hurt big time
Kaki: please Ichinose help Nii-san
Later Future Vice and Fujiwara shield other with some of the max-level barriers outside where Ichinose and Haruhi we're doing to stop them from killing each other.
Ichinose: please Haruhi stand down and look at me and your sister's face
Haruhi: Ichinose I can't do it but can you try to stop me from breaking some rule of the future last rule ever
Ichinose: Haruhi...I'm sorry to do this to you but please forgive me for this
After Ichinose and Haruhi were getting so much super energy from them and suddenly, Ichinose had to touch his chest while she absorbed his power into her while both of them are start flying through some walls inside the studio.