Flanna claimed that she was already fully capable of controlling her strength and she just got too excited because she'd been trapped for three months doing her strength training.
While listening to her rapid-fire of excuses with an almost crying face, Kisuke felt a bit of actual pity but also wondered about some things, 'It shouldn't have been a problem to be left alone for a whole month. Were there some other unforeseen changes when she transferred into this body? Or was this the result of getting killed? I have no way of testing this 'cause I don't have any initial values on her psyche.'
In the first place, Kisuke came here to check on her progress and if she still couldn't control her strength, he planned to stay and assist her until she could properly do it, "Let's run some tests before going out."
"I'm finally going out!?" Flanna stood up excitedly as if her crying face earlier was a lie.
"I said after we ran some tests. We can't have you hurting innocent people just because you bump into them, can we?"
Flanna did an exaggerated thinking pose while nodding to herself, "Humu... I see what you mean. If it comes down to it, I will have to limit myself."
"Wait, you could've done that?" Kisuke looked at her in surprise.
In turn, Flanna looked at her in confusion, "I'm the master of this body so why couldn't I?"
Kisuke could only stare at her speechless. Not being able to find any better words, he asked, "If you could've done that, why not just do it?"
Flanna threw her arms behind her head and answered, "Because I wouldn't be able to use my strength as fast as I wanted."
"How fast are we talking about here?"
Flanna began tapping her lips and wondered for a short while, "Hmmm... A few seconds or a few minutes? I don't know."
Kisuke understood. Even if she could unlock her full strength at any time, it wouldn't be enough to react to an immediate danger, "Let's get these tests run before deciding. You can probably change how much you lock and slowly adjust from there if you fail. Though it'd be a lot better if you don't."
The tests were done repeatedly in quick succession to ensure accuracy, which took about three hours. The result is that Flanna passed, but with a large caveat. She had to concentrate to get passing marks and there's no way Kisuke would trust that she'd always concentrate. If she is not careful, a single sneeze could level a whole area.
"I'll stay and help you with your fine control, but we would have to stay here for some more time. You could also seal your strength and we could leave immediately. Your choice."
Without hesitation, Flanna sealed her strength to that of a Middle-Class Devil. After the next set of tests, Kisuke concluded that she'd be fine as long as she was not around normal people, "But wouldn't further restraining your strength be a better idea?", asked Kisuke while arranging the data he'd gathered for today.
Flanna held her hands together as if she was holding a baseball bat before swinging them, "But then I wouldn't be able to carry a greatsword."
'Why do these girls always want giant weapons?', Kisuke thought to himself, "Do you want a pair of pistols too?", he asked while watching her swing around her imaginary sword.
Flanna's eyes shined, "Oh~ As expected of Boss! You really know your stuff! Make them black and white!"
"Right, right." Kisuke replied absentmindedly as he was already designing 'Rebellion', 'Ivory', & 'Ebony' in his head, 'Aesthetics are not a problem, but the functions are going to be a bit complicated. Only her physical abilities are limited so any energy-based attacks could still wipe out a small portion of the map. I could make 'Ivory' and 'Ebony' her limiter so that she doesn't accidentally discharge when trying out long-range attacks. As for 'Rebellion'... I wonder if I can make something like 'Phasing' through enemies or objects that she doesn't intend to destroy? She's Great Red, so it should be possible to add something like that as long as she's the one using it…'
"Let's stay for a week more.", muttered Kisuke.
"H-huh!?" Flanna stopped what she was doing and immediately jumped on Kisuke's shoulders, "But why!?"
Kisuke stayed stoic despite the 'child' on top of his head, "Because I have to make your weapons. We could also leave now, but I won't be able to leave your side for some time to check on you."
"Ughhhh..." Flanna wanted to go out, but she also didn't want to give up the weapons. Because of the way Kisuke presented it to her, it looks like she only has one choice, "Then what should I do to pass time!?"
"Err... Continue practicing or just sleep?"
Flanna stopped struggling and stared down at Kisuke, "...Sleep?"
Kisuke was surprised and looked up at her, "...Could it be that you haven't thought of it?"
Flanna got off Kisuke slowly and said, "How do you sleep?"
"..."
After a full 12 hours of classroom session about sleep, Kisuke was finally able to push the right buttons and finally gave Flanna the urge to pass out, "I must say, I'm doing a miracle's work here. How did I manage to teach her to sleep?" Kisuke muttered to himself while watching Flanna peacefully snore on the high-class bed he'd prepared.
'Wait... She'll wake up, right? She knows how to wake up, right!?' Kisuke got a little nervous but soon discarded his worries, 'If push comes to shove, I'll just toss her at Ophis to be blasted.'
.
.
.
Kisuke was able to finish Flanna's 'training wheels' in the form of a greatsword and a pair of pistols within a week. Thankfully, Kisuke was able to wake Flanna up relatively easily. And by relatively, it just took a single punch to the forehead that was enough to instantly turn a normal person into mangled flesh.
"Oh!!!!! That was great!!!!!" While her forehead was still smoking, Flanna exclaimed with her ahoge swinging left and right as she inspected her 'weapons', "I'm going to test this on that shitty black!"
Back on Earth, Ophis was playing with her friends when her eyes suddenly widened as she stood up.
"Ophis-chan? What's wrong?", asked Akeno, who was the one tasked with looking after them.
Ophis wanted to answer but she couldn't really understand it either, "...What was that?"