Meanwhile, Prince and Takemoto were at the Sakurazaka studio and they are doing together as siblings at the studio itself.
Prince: Yui-chan can you give some extra hand, please
Takemoto: sure Nissan
Prince: thanks so much Yui-chan
Once he was doing it in the tech room together with his sister and others can see them doing something inside the simulator room alone as siblings.
Prince: so Yui-chan what do you want to see at the simulator
Takemoto: I just want to see your past as normal days
Prince: sure of course
In the meantime, Prince took some chair for both of us to sit down at the simulator but she can see that it was some kind of magic that happened on normal days went he become a demon Prince's son.
Prince: Yui-chan...you cry again here take some tissue
Takemoto: thank you Nissan *sobs*
Prince: just take your time much as you want
Before he wiped his sister's tears and later Shiba was joined in the simulator with the demon Prince with Morita along as well.
Shiba: hey...Prince can we join too
Prince: sure no problem please do so
Shiba: thanks Hikaru let go and sit next to Takemoto
Right before Shiba and Morita are sitting next to Takemoto and Preis is areisotected beside her from any harm to another member.
Morita: Takemoto are you happy with your demon Prince son brother
Takemoto: of course I am happy and he treats me as his sister
Morita: make sure you stick on him at all times
Shiba and Prince were talking to each other like they teamwork as part of half people that he can trust them.
Prince: Yui-chan I want to go buy something you want to follow me
Takemoto: sure I would like to follow you wherever you go, Nissan
Prince: great let go then
After the demon Prince opens his wing and Yui-chan goes around his body suddenly, hugging so tightly as if she was scared of something but she can't say anything else.
Prince: Yui-chan are you okay?
Takemoto: Nissan please go and get out of here
Prince: sure...of course hang on tight
Takemoto was hanging on tight on his hips around his body and he can sense something wrong with them seeing see Anos with Uemura was important.
Prince: Anos...Anos is there please answer me!!
Uemura: I'm glad you are here my lord but please my husband they start the war
Prince: what war, Uemura?
Uemura took both of their hand and go somewhere at the palace where they can see that Anos is fighting alone but he can handle some fight on his own.
Prince: is that Anos fighting with the unknown
Uemura: they come without any warning, my lord
Prince: okay I will take them down but Yui-chan please stay with Uemura
Takemoto nodded at her demon Prince son but her brother and Uemura were taken by her at all times.
Prince: Anos...need some extra hand
Anos: my prince please handle their unknown leader
Prince: sure my pleasure let go and fight together shall we be unknown!!
The Unknown and Prince are standing in the middle of the palace while Takemoto was shouting at her brother to give him some luck.
Takemoto: Nissan good luck you can do it
Prince: thank you Yui-chan I can do it
Unknown: once I kill you next was her turn
Out of the blue, Unknown wants to kill demon Prince's sister but he can't touch it because Prince had another friend who was wearing some charm stone necklace around their neck unknown can't touch her but he can't give up just yet and start to kill the demon Prince heart with a sword.
Unknown: well I can't kill your sister but I can kill you instead of her
Anos: my Prince please be careful around him
Prince: relax I can handle myself with him
Suddenly, Prince was reached just hear her but he use a demon sword to defeat the unknown at all the next gen of their attack.
Prince: you can't kill me because why you may ask
Unknown: why can I kill you huh?
Prince: because my blood belongs to the Unknown king
Out of a sudden, Unknown stopped, and with all of the unknown people were kneeling at the demon prince's son but not the unknown himself kneeling at him.
Unknown: it can't be true why you have unknown king blood
Anos: wait..is that true my prince
Prince: yes it is true he was my unknown father who had died and he kill my father
Later the unknown people had a flashback and see that the demon prince was told the half-blood of the unknown and the demon son's blood inside the body.
Unknown: wait...where are you going?
Anos: it looks like they want to join the prince's side to fight against you
Unknown: that was not possible I am the leader of all unknown
Without any sound and Prince has stabbed an unknown heart with his demon sword and they all are freed from hell by the unknown leader.
Unknown: I can't die please spare my life
Prince: your life is over but now my unknown king and father can rest in peace
Unknown: no!! *turn into ash*
Demon Prince is getting tired of all the unknown fight but everyone is back to normal as one of the people of the unknown are going back to their home to the family that they miss and they say thank you to the half-blood of demon princes son and he went back to see Yui-chan side and give her some hug.
Prince: Yui-chan I'm back for the fight
Takemoto: Nissan...!! *hug*
Prince: please stop crying Yui-chan you make me cry too
Before the unknown disappear from the planet and we are back in the simulator room together with Shiba and Morita who look so damn confused with them.
Shiba: hey...are you okay, Prince?
Prince: I'm fine but it just too many people who want to hurt us
Takemoto: Nissan you got some cut on your hand
Demon Prince look at his hand and he didn't care about the blood but he care about her life and just stand there watching her brother fight with the unknown.
Prince: Yui-chan it's too dangerous for you to go alone but don't worry I give you some
Takemoto: some of what, Nissan?
Shiba: what happens with you, my prince
When demon Prince stepped out from the simulator room together with Takemoto with others who are there with them.
Prince: Yui-chan you are no longer my sister anymore but I will make you my lovely couple
Shiba: wait...Prince, you can't do that she is your-
Anos: let him do it please my prince do it on Takemoto Yui
Later Anos and Uemura held onto Shiba's shoulder while Prince started to do demon Prince kissed Takemoto's lips while she was shocked by him.
Prince: Takemoto you are my lovely couple now
Takemoto: senpai did you make me your girlfriend?
Prince: yes I did and you are my life forever until the rest of your and mine
Both of them are very happy with everything that happens so fast at the studio but now the rest of the members are watching from far away.