-Sometime in the future after the 3 faction leaders find out about the disappearance of Issei and have read the report of Issei and the ORC girls situation-

Inside the room of Sirzechs Lucifer, you can find the master of the room sitting down at the bed with his hands on his face looking depressed along with his wife Grayfia Lucifuge who is standing beside him. The room was in a depressing atmosphere.

Sirzechs - I still can't believe my own sister did all that along with the rest of the girls... They cheated on their own future husband and actually forgot what he did for all of them... From the sacrifice of his left arm to his own very life on the line just to protect them but here they are cheating on him, not only that. But they also have the gal to bring their new boyfriends to Ise's house, like they don't even care if they got found out... Haha... This gotta be the biggest joke I have ever heard... And just the thoughts of it makes me so disappointed... Disappointed for the first time against my own beloved sister for what she did but I also feel disappointed against myself because I don't realize it sooner to prevent this from happening, I thought they are gonna be fine on their own... Heh, how wrong I was...

Grayfia - It's not your fault, Sirzechs-sama... We could have never expected them to do this even in our wildest dreams... So don't blame yourself if anything it's our mistake as well for not realizing it...

She couldn't help shed tears herself when she thought about it once more, she feels exactly the same as Sirzechs. Disappointed at both of the girls and herself for not finding it out sooner.

Sirzechs - I won't even be surprised if he someday comes back and wanted to annul their engagement. He could cancel the engagement whenever he wants to because he has the entire right to do so! If mother and father know about this they will be furious!

He feels sick just thinking about it once more.

Grayfia just keeps silent after his outburst because she knows its all true.

Sirzechs - ...Grayfia... If by chance Issei wanted to kill Rias for what she did, I will still protect her because that's my duty as her big brother... But If anything happens to me you can serve Issei instead

Grayfia couldn't help become wide-eyed from that word and just when she about to say something, Sirzechs continues saying "Don't worry I already know you have some feelings for Issei. The fact that I am... a cripple down there, and the fact I can't fulfill my duty as a husband because of it is always my biggest regret.

And I also know you still blame me for the death of your brother since long time ago... I know you're holding back because of your sense of responsibilities to serve the Lucifer family, and the fact that my father might took you in as his concubine if not for my interference saying I love you even though I don't really feel that way which we both knew that the love of my life is already dead. But its enough... You have already fulfilled your responsibilities after all this time, now its time for you to find your own happiness. Go to Issei when the time comes, you don't have to worry about Rias either because Issei might not forgive her anymore after this incident and if my life is the price to protect her one last time then so be it... Father still have Millicas as the next successor, and its time to let him know that Millicas in fact is his own child, my little brother and not our son...

Grayfia becomes speechless when she heard his speech but she knows its true... she still blames Sirzechs for the death of his brother even if it's only a little bit and because of that, she can't come to fully love Sirzechs.

They both knew that their marriage is just a pretense to avoid Lord Zeoticus making her his concubine and there was never any love involved between them, Sirzechs become a 'Cripple' during the great war a long time ago and the one he truly loves is already dead during the war.

And to avoid the suspicion of any elders they both made a plan of making Zeoticus drunk and made him impregnate one of his concubines and hide the fact that Millicas, in fact, is his own son and not theirs(Sirzechs and Grayfia). And the plan works flawlessly and the only one who knows about this are them both and the concubine itself but the concubine died when she gave birth to Millicas, and they already erased the midwife's memories about this and made them think it's his own son.

Grayfia really does have feelings for the boy who is called Issei Hyoudou ever since the first time they met, his bright and honest personality is what attracts her so. Because every man she sees always acts like a gentleman but only wants to get inside her pants, but not him.

She's sick of that so-called gentleman and finds his personality charming and like his outspoken attitude. And after seeing his sacrifices he made for his friends, again and again, she becomes interested in the boy... But because she can tell that the boy loves Rias she steps back because she felt she's not worthy of his love and only someone young like Rias and the rest are worthy of him. So she buries her feelings and focuses on her works, but she was happy when Rias and Issei become engaged because that means in the future she will serve him and that's okay with her as long she can stay by his side.

But tragedy befell him... She really felt sorry and angry for the man she has feelings for and if she knew this would happen she should have just confessed her feelings to avoid any of this from happening alas it's all too late... The boy she fell for is nowhere to be found, it's like he just disappears into thin air even though she spent all the time she has just to look for him but she can never find him, not even a tiny bit of clue. She kept staying awake late at night just thinking about him, wondering if he's okay, wondering what is he doing right now, and many more.

Now that Sirzechs knows her secret then there will be no need to keep pretending after all this time so she responds with calm words saying.

Grayfia - ...I see... and I'm sorry for your loss once again Lord Sirzechs... And don't worry about Rias, even though she does something stupid I will also help protect her because I think of her as my little sister as well after all this time, I will beg Issei if I have to just to make him let her go from his incoming wrath that might befall her but I believe in him... He will recover from all this and won't blame you for it, and he might just let them go because we both knew just how much he loves them. And I doubt he will kill the woman he once loved in cold blood just like that... They will get their retribution but that is not for us to decide. And know that you have been a great husband after all this time...

Sirzechs - Heh, thank you for your kind words... It puts me at ease knowing you feel that way... *Sigh* Rias what have you done...

Then the room went quiet once more.

-Back to Issei-

Issei and Scathach arrive at the training ground LD prepared and when they arrived Issei couldn't help but asked her.

Issei - If I might ask what's the price for the training you will give me?

Scathach - Hmm? Oh, that's simple. All I want is for you to become the best warrior and beat me in battle, simple isn't it?

She said all that like she just answered its the most normal thing. Like when someone answered what's the weather like.

Issei couldn't help become speechless from her answer but then he took a deep breath and answer with conviction "Very well, I shall defeat you. Thank you for training me, shishou," he bows slightly.

Scathach - Hmph! Don't thank me yet, you better keep up against my training or you will be sorry.

Even though she says that she couldn't help become happy inside that he doesn't hesitate in the slightest even after knowing the price of her training. And she feels like he might be able to do it soon, just call it her 'intuition', and that's great because her 'intuition' never fails her.

So they started their training...

(AN: I'm suck at writing this kind of training stuff so I might just skip it just like when LD trained Issei. And don't worry LD will get her name in the next chapter or maybe the one after that 🤔 we shall see.)