... you know, it suddenly hit me from the episode 2 raw what the series' title was referring to. Ah I'm so slow.
Spoiler for Operation Start:
The words used to start the DOCKING was "Operation! Vivid Blue!", and at the end "Vivid Blue, Operation!". We can thus assume that the combined Aoi/Akane being was called "Vivid Blue".
Since the title of the anime is "Vivid Red Operation", we can actually assume that there'll be another combined docking form, this time with Akane as the dominant figure, a "Vivid Red". If true, that should mean that there'll also be a "Vivid Yellow" and "Vivid Green" combination forms using Himawari and Wakaba, basically the Gekiryujin to Akane and Aoi's Chouryujin. So will there be other combination forms from different combinations of the girls resulting in different Vivid colors too? The possibilities
