This episode really established what to expect as a dynamic going forward. Yumiella will try to stay out of the way from the game protagonists, fail at doing so, and humor ensues.
One thing I am glad that they have done for this adaptation is they kept in a bunch of Yumiella's internal dialog. Often in adaptations like this, the internal thought process is the first thing to get cut away. However, in this story, that is where a lot of the humor originates from as we see her thought processes and how they don't line up with other peoples' perceptions. An example from this episode is her swordfight in which she is thinking about ways to hold back while everybody else alternately thinks she is an amateur and then a monster.
Looking forward to seeing more of the cast get introduced in the coming weeks!