User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-80.216.24.114-20190204055532/@comment-2208155-20190204121739

Ishi added her in the characters that will give chocolate to Issei in Valentine day:

https://twitter.com/ishibumi_ddd/status/1092389576461606912

All the 15 wifes are mentioned here+Kiba&Gasper and Ophis and Lilith..