Atsushi Kaga
The Legend Portraits 

Panda Angels 

They are sinful. Because they killed someone in an act of jealousy.
They feel guilty (that’s why they wander around Heaven, Hell and Purgatory).
They are angels.
They want to do good things for the world.
That is why their halos were burnt and don’t have halos anymore.
Panda Heads are their siblings (they are more confused and lost than Panda Angels)