Animate Times on June 20, the decision was made for multiple reasons, but primarily to avoid developing anime original content.
"It's difficult to explain, but the main reason is [the
manga] is still running. When I discussed writing the series with [Keiichirō] Ōchi before production, we discussed how to end the story. At that point, the manga was in between volume six and volume seven, so the end of the adventure hadn't been created yet. If we animated the series based on the manga as is, it would end in the middle of the story," Ueda said.
The director explained that the first and second chapters shift in both perspective and theme, switching from Mikoto to Sally's point of view. Ueda stated that while this works in a novel or comic form, for an anime it's easier to follow a story when there is a single main character. Since