Oswin

Oswin is the head attendant of the second prince of the country Anastasius.

According to Rozemyne, Oswin is "an elderly man that looks like a butler".

When Anastasius makes Rozemyne give a report despite visibly being ill, he gives his master a reproachful glare, but does not speak up and faithfully performs his duties.

When Rozemyne finally succumbs to her fever and passes out, he is very surprised, but still collected enough to quickly get her retainers.