Everyone now knew why Irving doesn't want to have Summoners. It is because he is cursed and it is because he didn't want to hurt anymore people.
It seems that he could not only hurt the Summoner, but he could hurt other people who are in contact with the Summoner, too—take for example Darenn who immediately carried her and looked straight into her eyes.
With the story given to them, Professor Noir left the house after saying good night, already searching something about this curse. However, he promised himself that he won't say a word to Aurelia, not wanting to worry her.
With that, Irving decided to stay in the living room then distance himself the moment morning comes so he won't hurt any other person.
Still, even though it's finished for now, the familiars aren't able to sleep—with the thought of the curse lingering in their minds.