User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-196.213.52.66-20190923080225/@comment-2208155-20190924053945

Probably Ishi said in Azazel Cup that Le Fay perfect position is BISHOP and Issei has 2 of them but.. RIAS NEEDS ONE.. Maybe she can be added to Rias Peerage. To resolve her HUMANITY problem.

Probably you are right about that. Is not the first time that one character parents appear to embarass this character. Like Issei parents and Rias father when he was introduced.