It took Aika a few minutes to fully calm down but she didn't move away from Medusa for several minutes more.
"I'm sorry for my sudden outburst. I don't know why I did that." Aika apologized while separating from Medusa.
"It's fine. Although I can't really understand what you are going through right now, I know that you are struggling and the least I could do is to become a pillar of support."
Medusa spent a few more minutes calming down Aika and the first thing that the latter asked after that was, "Will you tell more about me and you?"
But contrary to her expectations, Medusa shook her head, "I won't."
"B-but why?"
"Because you won't need it once you can recall everything yourself without me needing to tell you."
"...And when will that happen?"
Medusa smiled knowingly and said while patting her head, "It'll be sooner than you think."
She then turned to Riveria and finally asked what she had been curious about, "Riveria-san, since when did you learn how to use Flash Step? I never knew that master developed it to use Demonic Power."
"...Just yesterday." Riveria answered after hesitating for a moment because she didn't know if what she was doing is bad, "And I was never taught how to do it nor that you can't use it with Demonic Power."
Medusa's eyes widened in surprise. There were so many points she wanted to question, but she honestly didn't know where to start, "I'm sorry, but could you explain the entire process of you learning it? If you're not comfortable with it, I won't pursue an answer."
Wanting to confirm that she's not stepping on a taboo of this world, Riveria truthfully described how she developed the ability to copy other abilities and she wanted to confirm what sort of abilities she could copy when she asked Aika to demonstrate to her the Flash Step until she forgot the original goal and just kept adjusting the technique for her own use.
"T-that's... Amazing." were the only words Medusa could utter out of sheer amazement and shock, 'Depending on what sort of abilities she can copy, it'll be one of the most amazing original abilities that a Devil could develop. On top of that, she can deconstruct the abilities she can copy and adjust it to her own convenience, which pushes this ability to an already ridiculous level.'
"So is it a taboo or something bad?"
Medusa immediately shook her head, "It's not. It's just that you're going to scare and piss off a lot of people with that. Though that shouldn't dissuade you from using it."
Medusa thought about it for a moment before saying, "I'll be staying with you until you are satisfied, so I'll help you out. Let's see how much you can copy."
Medusa showed Riveria a few Magic like Teleportation and Cloaking Magic and she was able to copy them with relative ease. While doing so, Medusa would ask her how her ability works in detail, and after some further introspection, Riveria answered, "It isn't just the formula behind the Magic that I can easily see, but the movement of the Magic Power itself and the thoughts of the user while they're using it."
"The thoughts, huh... I see... Let's test it more."
"Uhmmm..." But before they could go on, Aika suddenly announced her presence, "What should I do in the meantime?"
Medusa thought about it and recalled the training that Kisuke and Yoruichi would always do and said, "Take your blade and go somewhere quiet not far from here. After that, sit down in a comfortable position and meditate. Once you've successfully emptied your mind, you should try connecting with your blade and talk to it."
Aika looked at her nodachi, "It can think?"
"Of course." Medusa nodded, "I heard from people the same as you that your blade is your partner in life, and each one of them has a name. If you want to regain your memories, learning their names would be, without a doubt, helpful."
Aika went silent for a moment before bowing her head to Medusa, "Thank you. I'll leave first."
Medusa and Riveria saw Aika disappear from her spot and the latter asked, "Is it fine to leave her alone like that? Aren't you tasked to watch over her?"
"It's fine. The whole forest is secure enough and there's really nothing I can do to help her at the moment."
The two of them continued their test of Riveria's new ability and that went on until the sun began setting.
.
.
.
Kuroka was currently in Occult Research Club's room with her sister and everyone from the club and Vali's Team, spending their time leisurely while narrating their experiences in the other world.
While Kuroka was showing off the crest she received from Hestia, she suddenly received a call from Medusa, "Medusa-chan~ What's up, nya? Already missed me?"
[Are you free right now?]
Seeing that she didn't entertain her teasing, the smile on her face immediately disappeared, "I'm coming over, nya. What's the situation?", she replied while preparing the Teleportation Magic that could connect directly to Medusa's location.
Koneko also stood up from her seat and released three of her hair tails.
Vali, Bikou, and everyone else sensitive to the movement of the Ki became stupefied with the amount of Ki she suddenly released but quiet enough that those who couldn't use it can't feel.
Due to her shock, while helping Riveria, Medusa briefly forgot that they'll be reacting like this if she didn't explain the situation enough, "I'm sorry. There's nothing wrong. I just want to know if you could spare some of your time. I'm currently with Riveria-san and wanted to test something out with your help, but it's nothing urgent."
As soon as they heard that, Kuroka and Koneko left their tense state but the others couldn't help but take a closer look at them and noticed that they looked like swords that are ready to be drawn at any time, 'From their stories, the other world's danger level shouldn't be that high, but how come they've developed something like this as if they were ready for a war to suddenly come knocking on their door?' Vali thought to himself.
Then a certain shopkeeper with a large grin on his face surfaced on his head, 'Issei always tells us that Kisuke Urahara always overdoes everything... But this is beyond just overdoing it...'
And if Kisuke and Yoruichi were to be asked about this now, they'd admit that they indeed overdid it... A bit.
Kuroka smiled again and said, "I'll come over, nya~ Since you're testing something out and even called me, it must be something pretty important."
"But aren't you busy?"
"We could always catch up later, nya." Kuroka immediately disconnected the call so that she wouldn't hear Medusa's dissuasion, "I'll be going first, everyone. Let's hang out again later~!"
"Are you not going to take me?" asked Koneko.
"It seems that she needed me for something specific. Go on and continue telling them about the other side, nya."