I feel as though I'm the only person who's watched this anime. Its by far my favorite anime with a unique plot and sad ending
It's about a guy who dies and is sent off into the afterlife for kids who didn't have fulfilling lives. He then joins the Afterlife Battlefront to fight a girl named Angel.
Bad summary but oh well.
It has the absolute best music ever. I cried after an episode because the music was so touching. There's only 13 episodes though. Now go watch it! I promise you won't regret it.