Read, reblog, and resonate!
So I just imagine how Kirari handle the "So I have this Family..." talk with Sayaka because before TOD thing, the poor Sayaka had no idea who was Kirari beyond the school (we could see this when "Kirari" left on an helicopter only saying she would be going on a erand) but when the family introduce themselves to the academy Sayaka knows everything about them, so I asumed Kirari told Sayaka all on the very exact night of the gamble with Yumeko
Sayaka: wow jumping out from a five story building without me knowing there was a safety mat under me only to confess to my beloved president my love, was surely dangerous but I feel powerful, like I can take anything.
Kirari: I am glad you just said that because I need to tell you a small detail about me.
Sayaka: 'kay
Kirari: I am the leader of a clan call Momobami where every kid gambles for their lives
Sayaka: oh
Kirari: And basically they all want my head because it's hell there I am the Devil, so ever since I was a child I played with the "I can give you my position if you defeat me in a gamble" thing, and now, because I'm bored, I want the whole school play against me and my family to take my position
Sayaka: I-
Kirari: also we do slavery
Sayaka: So-
Kirari: and they are coming tomorrow
Sayaka: WHAT NOW?!
BUT THAT'S NOT THE END, in the chapter 84 when Yumeko storms in while Kirari was talking with Ririka and Mary, Sayaka acts naturally in the presence of Ririka, so again, Kirari must have tell her, but we saw this on chap 75.5
Sayaka: I just finished the grand meeting were for some reason I fought with a fifteen year old girl and basically eliminate some competition so my President could win... I feel like I can-
Kirari: I am glad you said that-
Sayaka: oh no-
Kirari: because, remembered all the times you sweared I was not myself, well you inteligent little girl were right! The vice president is my twin sister and we exchallage places sometimes and whom, my clan say, is my shadow because she was born to feel the exterior world through "Kirari", so it’s not my name but a hierarchy
Sayaka: please stop-
Kirari: and I want to gamble with her
Sayaka already crying: why? Why are you like this???