Quoted By:
The true reason why Aqua graduated.
Pic related is what Korekore posted just after Aqua's graduation. note that he only denied the fact that amatsuki is involve in this. It was an honest mistake by the public which interpreted his message inaccurately
The expose he wanted to publish was the fact that Aqua (anchor) and Shion (moon) are getting married and Aqua had to graduate because Cover doesn't allow romantic relationship between their talents.
Remember Shion's long break December last year? Yes that's when she found out she was carrying Aqua's babies 2 months out after years of unprotected sex.
Shion gave birth on July this year and she was able to go back to streaming a couple of weeks later.