Out of all of girls, Rias was the only one who was aware that Rebecca wasn't Rudy's biological mother. Sure, Lilim also knew, but she wasn't present there. And Angelica was the only one who was aware of Rudy's feelings toward Rebecca.
Rias wanted to comment something after hearing that, but she decided to stay quiet until she learned more about Rebecca and who she truly was.
"Alright. So I will take my leave now. See you all in the morning. And… yeah! I will bring Alice too. I messaged her a while ago, but she never replied, so she is most likely sleeping since it's already past midnight."
Rudy grabbed Reina and said, "I will drop her at the office."
He teleported to Reina's office with Reina and let out a weary sigh.
"Alright then, Reina. I will see you tomorrow, and don't forget to call me when the builder comes."