The Astrologer and Her Star/The Ghost of You, The One From The Past

After a few certain events surrounding Subaru, Makoto, and Hokuto. They began to bury themself in works that not even Mao know existed and completely left him out of their affairs. But then one day, Mao stumbles a young girl, who is a new idol of ES, named Astesia Urbica. After gazing at the stars with her one night, they decided to be the stars that'll complement each other, as they're both lonely.While that happens, Wataru constantly gets a warning from a lady who called herself Canon. She keeps warning him to cancel their show. Wataru thought it was just a joke that went too far and ignores it. But his decision wasn't that much of a wise one.