He @Kamikaze-Planes what chaoter are you now from Demon School Iruma because chapter 305 had just release 16 hours ago and I want to clarify since Iruma's appearance can help him blend in along with his attitude a bit different from the canon, when Kokushibo trains iruma does he have the Transparent World along with the Selfless State because Ami Kiriwo will be very confuse with Iruma he should very angry that Kiriwo will kill everyone in Babyls that he is releasing a menacing aura but at the same time he is not showing any killing Intent even his presence. And what about Iruma's scent does he smell as a devil since he is not human anymore and can Iruma have wings since his sword is made of his Flesh his wing appearance instead to black bat wing like all demon have his wing is similar to his Flesh sword(wing fingers is colored like the blade part of his Katana while his wung membrane is designed like the many Eyes of his sword).