Having reunited with Asahi in Re'Union, Satsuki asks Asahi to stay away from Haruto for his sake. However, Satsuki realizes that she was jealous of Asahi after witnessing her share a moment with Haruto six years ago, and vows to herself that she won't lose this time. In order to find out Asahi's identity, the three of them head to the dungeon where Asahi got her game over all those years ago. (thetvdb.com)