Cain heads to the royal capital with his family for a party celebrating his debut in noble society. On the way, they see a carriage being attacked by monsters, and Cain runs to help... and then learns that he's saved the princess and the duke's daughter.
so I spent the next several
nights lying awake.
لذا قضيتُ الأيّام العديدة التّالية دون نوم
und wurde jeden Tag übermüdeter.
así que me he pasado días
sin poder descansar.
así que me he pasado días
sin poder pegar ojo.
Ainsi,
j’ai enchaîné les nuits d’insomnie.
così le notti seguenti sono rimasto sveglio.
então passei muitos dias sem dormir.
и в итоге ещё несколько 
дней прошли без сна.