Hearing that news disappointed you in a way you hadn't felt for a long time, and made you think about things you didn't like. While this world had treated you well so far, you couldn't help but assume you'd done something to scare her, or worse pushed her away with your domineering personality.

Then again it might not be a problem on your end. Maybe she was simply too busy to send a letter, or she'd gotten unlucky and it was lost in the mail. It could've gotten intercepted by a third party, like her family. Maybe said family found out you'd gone on a date with her, and now she was on the run from them. What if she died somehow? What if she'd become forcefully engaged with Forthwythe or Rostchilde? She could've been kidnapped for whatever reason. What if she was dead?

You shook the thoughts away from your head. There was no reason to be so affected. You already had such a beautiful harem that was willing to spoil you and unconditionally love you.

Yes, nothing could be done about her not talking to you, not now. So thinking about it did you no good. Especially when you were hugging the heavenly fluffiness that were kitsune tails. The woman these tails happened to be attached to had a comparable softness, though you now felt she had some muscle to go with it. Seems like all her training was beginning to pay off.

Ayane gladly indulged herself as you hugged her, not wasting the opportunity to share an intimate moment with you.

After you were done, Ayane falling asleep soon after, you happened to visit Ruby Rose in the Control Room.

"Master!" Rose starts, almost surprised by your entrance. She rises from her seat, hair only slightly disheveled, and approaches you. "Forgive me for my reaction, Master. After I occupied my thoughts with ideas on what you would desire so soon, I began once more to attempt in comprehending the nature and conceptualization of [Custom Special], as you entrusted me with it. I drew a blank, and then you suddenly appeared from the corner of my vision." She sighs. "Alas, to my dismay, my mind cannot match the natural genius of a Savant."

"The effort is still appreciated." You replied, noticing how she brought out some paperwork for you. "Your research, I presume?"

"My research, indeed." She gives a coy smile. "As much as I would enjoy to explain the many intricacies I've found within, the subject eludes me — but I repeat myself."

"Don't worry. It's hard for me to explain it too, and I know what it actually means." You perused through it, and as expected you found that she stumbled her way to theoretically swapping between past abilities. It would need some practice on your part to test out, and would eventually spread from there to the rest of your wives, but it was only a matter of time before you understood everything there was to understand about [Custom Special]. Upon hearing this your Mastermind became smug.