"I think... I might be Supergirl."
"..."
On a rather warm sunny day, three students sat on the floor of the rooftop during lunchtime. They rarely gathered together for once, so when Mizuhana called them here—the two decides to follow along. Of course they're Kousuke and Issei respectively. They knew about her situation so there shouldn't be any problem, heck, one of them were even the cause of it.
"What is this dumbass talking about?" Issei leans toward Kousuke and whispers with his hand covering his mouth. Unfortunately, his voice were loud enough for Mizuhana's sharp hearing. But Kousuke still pretends to think before answering with a smirk.
"Maybe the loss of testosterone is giving her the ability to hallucinate. It can happen to people. Don't ask me where do I get my information though, it's confidential."
"Dumbass... loss of testosterone..." Mizuhana muttered in low voice, then she raised her face and glares at them. "Did you two even seriously listening to me?! I told you I suddenly becomes strong! How do you explain something like that aside from my logical theory?!"
"Logical theory she says," Kousuke replied with a restrained face. He was withholding the laughter trying to escape from his throat as he pointed at her with his thumb. However unlike him, Issei didn't hold back and freely laugh while holding onto his stomach.
"Hahaha! How did, pfft, how did you even reached such a stretched conclusion? Hahaha!"
"Maybe she could be a great writer with that unrealistic mindset, pfft!" In the end, even Kousuke let out a chuckle. "Haa... Who am I kidding? She probably had written countless self-indulgent harem fanfic before, isn't that right Issei?"
"Pfft, yeah! I have read a couple of them, every main characters of his fanfic always wear glasses—need I say more? Ahahaha!"
"S-Shut up! I was just at that phase at the time, it's different now!" Mizuhana said defensively, her face reddened from embarrassment. She couldn't believe Issei would brought up her dark past, he was even part of it since he helped her wrote the smut scene himself! She considered using her newfound power to beat them up, but Kousuke aside, she wasn't certain if she could use her strength against Issei. He has the Boost Gear after all, a cheat that can turn a losing battle to a winning one with time. Of course she learned all about this after telling them about what she had done to the delinquent boys.
It was also thanks to Kousuke intervention that the delinquent parents somehow believed he had simply broke his wrist from falling down the stair. She didn't think much at the time, but on second thought, she could've landed herself in juvenile school. Of course he could've just heal the injury, or let Asia do it but Kousuke wanted to leave that as a lesson for the delinquent and Mizuhana agreed with his decision.
"I'm serious! Otherwise how can I broke the guy's wrist so easily?! Clearly I have superhuman strength!"
"Well, I can do that as well even without relying on my Boost Gear. My physical strength as half-devil is more than enough, especially at night." Issei muttered with a shrug. He tried flexing the muscle on his arm, but the bump were barely there.
"That's because you are no longer human! We're talking about me! I might be a girl now, but I'm still human!"
"Girl, you ain't special. I'm a human too, and I can easily destroy a mountain or two with a casual punch," Kousuke said nonchalantly. He didn't try to flex his muscle like Issei, however, he did offhandedly threw a punch at the sky causing the clouds to scattered from the wind pressure. It was a little exaggerating for a flex, so the two looks at him with deadpan expressions.
"Hey, are you sure he's a human? How can he do something like that?" Mizuhana pulled Issei to a corner before leaning closer and whispers to his ears. However, due to her appearance as a cute girl, the Oppai Dragon couldn't focus on her words. Rather, he was slightly thrilled having a girl other than Rias acting so close to him. Of course he knew the soul is that of a perverted Motohama, but her current appearance is so further apart that it's rather difficult for Issei to reminds himself of the fact.
"Hey, are you listening to me? Why is your face suddenly turning red? Are you sick or something, bruh?" Mizuhana asked with brows raised. Despite knowing she's a girl now, the person herself still acts rather casual around her friends. In short, she's rather ignorant in how she must act to the opposite gender. This was why Matsuda keeps his distance from her, he was having a hard time controlling himself from acting stupid around her.
"Uhh, yeah! I'm fine, just feeling a little bit of the summer heat, that's all!" Issei said, trying to sound casual while pushing Mizuhana slightly away from him. Looking at them from the sideline, Kousuke couldn't hide the smirk forming on his face. Issei was trying his best to act normal, but his desire to be a harem king were clawing itself despite his refusal. After all, Mizuhana looks like an actual girl—not someone who looks feminine but had a mighty sword sheathed in his pants like Gasper.
"Why are you two whispering to each other like a childhood couple? Got some secret you two don't want me to know or something?" Kousuke asked with a cheeky smile after sneaking between them while wrapping his arms around their shoulders.
"Childhood couple? What are you talkin—Ew, no way! I might be a girl, but that's still disgusting! Come on!" Mizuhana mumbles with a confused look on her face until realization hit, recalling how she acts just a moment prior. Her expression shifting to disgust was rather quick, she pulled away from them and sat at a comfortable distance this time. She realized then and there that she must watch out how she acts around boys, less it might brings another troublesome misunderstanding.
"Like I said earlier, I wanted to know how the hell did I suddenly gets so strong?! There should be a reason behind it, so we need to solve the mystery!"
"...Maybe you also have some powerful Sacred Gear or something?" Issei suggested after calming himself. Then he turned toward Kousuke, knowing the latter had a special ability that allows him to identify such things. But the latter simply shook his head.
"Nope, no Sacred Gear. No matter how much her appearance changes, the inside is still Motohama."
"What do you mean by that huh?!"