User blog comment:Crimson and Darkness/Volume 24 discussion blog/@comment-177.134.149.241-20180112223737/@comment-1359322-20180113110958

"Yes, it’s Issei’s team vs Typhon’s team. And if Issei to lose, Rossweisse will be forced to marry Vidar."

Crimson, it's not yet confirmed whether or not the match-up between Ise and Typhon will decide this issue, so lets not assume it to be such.