STAR DRIVER: Kagayaki no Takuto – 24
「ひが日死の巫女」 (Higanishi no Miko)
“East Maiden”
It’s the precursor to the finale and a pretty good one at that with a huge cliffhanger involving the fourth phase and the revival of King Samekh. There still wasn’t clear indication as to what drove Sugata to Kiraboshi’s side, but further implication that it’s for Keito’s sake makes it the most plausible explanation.