It seemed her reasoning was logical enough to get her brother on board and he was willing to accept her help to try and control this arm thing of his. Moving right along since, her hand was grabbed Shizuka used her upper leverage to pull him up onto the platform a smile on her face. "Good, I'm glad to help." she mentioned only to begin rolling towards the steps once his feet were on the proper level of the platform. The questions he further presented after her other bit of speech made her eyes widen. It'd completely slipped her mind that he wouldn't know about the former Torrent Queen. Beyond this he seemed surprised that she wanted him along to the meeting and asked if she intended to make him part of her team. She looked stunned for a few seconds. "Uh, yeah. I completely forgot you wouldn't know about that. A little while after we all were freed from the Tower, Sho-nii found Chi-chan, apparently her elder brother is the one who stole her from our Tower. She's... uh pretty different now. She'd apparently lost most of her memories. We still aren't sure how many of them she has or not." she said on the matter of their black haired friend. She could have gone on to explain how all of this happened, but it was a lot of information and partly only speculation since the fanged girl was so very private and quiet in most cases.
As for the team thing there was a bit of explaining to do as well. "Yes, we'll be late. Even if you don't wish to join, attending the meeting will be the easiest way for you to meet up with most of us. I should explain however, that the Black Order is a conglomeration team, its composed of a few smaller teams. But small is relative, each of the main teams which make it up had at least 100 members. And the Black Order itself contains dozens of members who don't belong to any of the smaller teams. The Disciplinary Committee formerly known as Hydra presently known as Chimera is run by Chi-chan, and her second in command was this pet human of hers named Kyoya, but is now Kanda. The Vongola is run by Muu and Aki has recently become his second in command. And I run a team called the Black Hand... with Lavi as my second in command." She mentioned. "The team was made to make Sho-nii Sky King... which we did. But we're all joining this next parts war as well, mostly to see what the younger generation of Gravity Children are capable of. So our core teams need to be remodeled." she explained calmly before returning her eyes to her brother. "And, of course, I'd want you on my team without question, but only if you want to." she said in fairness to the lad, this was a lot and it would be completely illogical to just expect him to jump into the parts war when he literally had no stake in it.