Adam after being killed by Niffty was reincarnated into a demon,He no longer had wings but a gigantic two-metre demon tail,he was wearing an oversized T-shirt with 'Nirvana' written on it and light gray cargo pants.While you were relaxing at the Hazbin Hotel with everyone you heard a knock and went to see who it was, and it was Adam

Adam:I missed you so much!

Having said this, Adam hugged you.He knows he's hated by everyone but he just wanted to see you again