Tsuyo Morduin and Ancient Archive.
Nagi no Asukara. It is very high on my list of favorite anime. Only surpassed by The Melancholy of Haruhi Suzumiya and just barely.
Hellion and Spirit Slayer
Well can't Demon Slayers turn into their parent's demonic form more easily? That's what I was referring to.
" As such, Demon Slayer Magic enables its users to transform the physiology of their body into that possessed by an Etherious."
Can we still have our characters still be taught by demons and have some of the few differences Demon Slayer had to Devil Slayer? So basically, just change the name.
Test tomorrow, did not study.
Manga: Noragami or Nura Rise of the Yōkai Clan
Manhua: Tales of Demons and Gods
Anime: Nagi no Asukara