ASTRID woke up feeling refreshed. Today was an important day. That's why he slept early to make sure he would feel energized for today's schedule. Because today was the first script reading of [Serendipitous Summer].
This would not only be the first script reading for the movie, it would also be his first script reading after being reincarnated in this era. Which was only natural since the roles he'd been given until now didn't need him to participate in any script reading.
In [The Sleeping God], he was only a late addition that didn't have that much screen time. In [Blind Justice], he was only a guest for an episode. And with [The Great War], even though he had a pretty big supporting role, Director Scott didn't require them to have a script reading.
