It was a filler and bridging episode, but it certainly didn't feel like one.

Honestly kind of refreshing that Chisato's reason for not killing people is that she doesn't like it. Nothing more, nothing less. It also wasn't before she left DA. She's been using them since she was 7. She's always been different from the other Lycoris I guess. Never as worried that she would lose her place in the organization (we still don't know how or if they "retire" Lycoris) and be an abandoned orphan with no place to go.

In terms of composition, a nice bookend as well with Chisato worrying about Takina getting found out for wearing boxers, drags her through a shopping montage, and then Chisato burns herself with the curiosity of Takina's statement about wearing men's underwear.