god i HOPE this is true... with mutsumi calling sakiko onee-sama, i wouldn't ve surprised if at the very least, they're acting as sisters on stage. either way it's really hot. and if that's true then it feels like saki might be kind of grooming her 😳 obviously we'll have to wait and see how it plays out, but right now it feels like mutsumi will do just about anything for her and i'm really curious to see how their relationship got to that point?? god i do hope they're blood sisters though that would be great fuel for me