It had seemed that the girl was raised by the god Raijin at a young age as the girl didn't seem to understand her own species limitations. Luna shook her head at the question. "Well, I am not a Lightning Slayer so I can't eat Lightning. Amelia is a mermaid so naturally she wouldn't be a Lightning slayer. Like I said, since you were raised and trained by your papi, he trained you in the art of the Lightning God Slayer."
Luna and Amelia were concerned about the girl's mind. "Let's give Raijin credit, he didn't seem the type to raise a child to at least have basic manners, so with the bar that low he did a damn good job. However we do have the main issue, she doesn't know about her status, that can be a problem." Luna wasn't as generous with praising the God, as she figured there was a million other things he could have done, however she was speculating that she didn't have much human contact while she was with Raijin. "Seems like he didn't understand humanity, or just forgot to teach her about it. We might need to teach the rest of humanity." Amelia almost broke out laughing but kept her telepathic dialogue from influencing her body. "That's funny, a former human and a synthetic human teaching a girl raised by a god about humanity."
Luna could see the wheels in the girl's head trying to spin as she was trying to understand what the Nature fairy had told her earlier. Meanwhile Amelia wasn't as discrete with her thoughts. "Seems like your papi didn't have a thorough conversation with you on this subject. I might need to have a word with him about parenting later." Luna looked over at Amelia, confused. "What would you know about parenting? You haven't even activated your reproductive systems." Amelia waved off Luna, she was not exactly pleased with that, but she respected Amelia's privacy.
Luna returned her focus to Mai, trying tor recall her knowledge and all said so she could explain it simply. "When a God Slayer is trained, their bodies undergo adjustments to handle the magic. Usually the lungs for sure, but depending on the magic other parts as well. I do not know Kenna personally, so I cannot vouch for what kind of slayer she is, but it's typically Dragons, Demons, and Gods. Personally I am a bit surprised she didn't have this talk with you.
Amelia had two theories nagging at her all along, however she decided to keep the darker out of the ears of the God Slayer. "Mai, there is a truth that you might need to hear. I don't think you quite understand the difference between Gods, and other beings like Humans. Gods are a very dangerous entity of being, like way powerful, sometimes too powerful for this world. Gods often can't remain in this world for one reason or another, so they might have to retreat into their domain, a different world. Sometimes it takes too much effort to stay here, or their power might be too great, and potentially have impacts on the world around them. Typically negative, and I can only imagine what a god of storms can bring with his long term presence. On the other hand, he could have been in violation of some divine contract, and had to return to his domain. If I recall, your papi, he might not have been keeping track of time and had to go, Gods and Humans have different ways to view time."
Luna looked at Amelia, almost ready to throw her in the recycling bin, however things got worse as Neptuna seemed to chime in. "God Domain? Does that mean Mai can't go there?" Luna however couldn't hold a grudge against the mermaid, however while she would be impressed by the deductive reasoning, she had to admit it was at a bad time. "Depends on the god, sometimes it's completely unsuitable, however i don't think a god of storms can be that bad. But still, finding it is a lofty goal." Acknowledging the fact that the girl was trying to sort through her problems, Luna wanted to keep Mai where she was at just above calm. "Mai, the worst part about humanity is there is no right answer, no instant solution. Same thing with coping with stress and problems, sometimes they can be punched out, sometimes talking it out, sometimes just moving on no matter how hard."
Luna had a nagging feeling that Amelia was holding something back, and was right when Amelia sent Luna a written note in Archive magic. "Second Theory, perhaps she could have slain Raijin, most likely an accident, and simply blocked out the memory. I don't want this to be true but we can't rule it out. God and Demon raised slayers can often lead to this, that's why they usually learn from ancient scriptures and lacrimas. Impossible to prove though, the corpses of gods aren't easy to find."