In his life on Earth, Azrael had experienced many different types of despair.
The despair of being trapped in a place without seeing the sun for months or even years.
The despair of losing his loved ones. The despair of watching the people responsible for his suffering walk freely, laughing and mocking him while he could do nothing but cry silently.
The despair of starving for weeks, to the point where even his own body began to consume itself just to keep him alive. The despair of being treated as an experimental subject by people who tore his body apart piece by piece, while he could only scream in pain and do nothing to change his fate.
There were many moments of despair he had faced. However, the one that left the greatest wound on his soul was the despair of having his hopes shattered.
It was around one and a half years after he had been thrown into the experimental lab when, one day, he got the opportunity to escape from that hellhole.