User blog comment:B214/Volume 22 spoilers/@comment-95.90.227.198-20161211201608/@comment-10330822-20161213034429

Davasena being Bina would be ridiculous, she's a God-class being and that would be way out of left field. All we know is that Bina is High-Class+. Plus, what motive would she have to work for Issei?