When Isiah was suffering from that hunger mixed with that weakness he felt like he was about to die .
It seemed like it , he even thought that that was the case , and he was not scared or even sad about it .
That joy that came along with killing those teachers was more satisfying than anything .
He had to stay positive till the end .
He kept looking at the mess he made till he thought that it was the last thing he was about to see in this lifetime .
He was very calm, not like all the other times when he had Ciel around him, when he panicked because he thought that he might kill him at any time.
Probably the only thing that he feared that he would miss was Ciel, nothing more .
The situation felt like death , even his feelings were like someone's who is about to die but deep down Isiah knew that he would never die like that.
That anger that awakened after hearing the story from those teachers was never going to fade away.