Even if its unfinished I think the anime did a good job using 12 episode to its maximum
Making a good plot,using good music,limiting fan service,good comedy,great ending.
The anime focuses on the story of yuzuru and kanade so its not wierd if the other side character like shiina,yurippe,and the others doesn't get the spotlight
But if you interested on their past you can check out angel beats heavens gate manga >:D
Rin_[Tenshi/Kanade]
ガラスの少女 @ インドネシア! joined
kimi dake wo kimi dake wo suki de ita yo kaze de me ga nijinde tooku naru yo