There was a graduation ceremony consisting of Otanashi Yuzuru, Tachibana Kanade, Nakamura Yuri, Hinata Hideki and Naoi Ayato. Then, everyone except for Otanashi disappears at the end.
As you see in he end of season one it will take place in the real world
"Angel Beats!" - Yuzuru Otonashi - Yuri Nakamura - Angel / Kanade Tachibana .
My Soul, Your Beats!
"Angel Beats!" has 13 episodes .
The rating for Angel Beats is PG-13, so if there is parental supervision , the eight year old can watch angel beats.
Spoilers: Everyone except for Otonashi disspears at the end.
well since the ending of angel beats ended off in such a way there will most likely be a second season
Jun Maeda.
The manga you are referring to is likely "Platinum End." In this manga, the main character is a high school student who becomes an angel and forms a contract with a red-winged angel to become a pop star.
There is one OVA for Angel Beats that is 24 minutes long
Anime Network
The series ended.