User blog comment:B214/Question and Answers 6/@comment-30780538-20171125100202/@comment-30924344-20171126110321

Ophis is not going to be in the harem at all. Her childish personality would feel wrong to make her fall in love with Issei; she has no concept of love anyway and won't learn to understand it because she has no reason to and it was determined she is the mascot of Issei's harem.