Idk if Nice hadn't blocked the first blow, whether AHu would have survived. But I do know that Nice's remaining conscience compelled him to do so, giving AHu the opportunity to awaken later. Faced with this situation, what would Nice have thought? Would he have thought that if he hadn't blocked that blow, things would have been completely different? I bet he would have. Even as a viewer, I've thought about this, and it's hard for the characters involved not to have thought about it, it was his conscience that destroyed his motivation to live. Nice died because of his own kindness