I remember watching this anime a few weeks past but I cn't remember the title of it anymore. The angel is trying to stop them from going to heaven or something like that...
There was also a character that only quoted 80's songs
"Officially, this machine doesn't exist, you didn't get it from me, and I don't know you. Make sure it doesn't leave the building." Graphing Calculator Story Gods Must Be Strong, Godslayers Must be Stronger