Artist's commentary
Scholar-chan vs Extreme Knights Swamp - Scholar-chan & Eorzea Reborn
This may be utterly inconsequential, but
Astrologian-chan likes Vellguine x Zephirin, with an older person acknowledging an honest, diligent youngster's secret hard work;
White Mage-chan likes Adelphel x Janlenoux, an easy-to-understand totally gay hotties pairing;
Scholar-chan goes for Paulecrain x Grinnaux master-and-servant moe. Grinnaux is the uke.
Sources: https://twitter.com/fakkuma/status/669119063726014464 & http://gakusyachanno.blog.jp/archives/1045902155.html