I think you guys are forgetting that sekireis react to their ashikabi based on the ashikabi's power.. with more powers, they are capable in attracting more powerful sekirei. Matsu react after he gains 2, then with Matsu in the list he summoned the feeling of Tsukiumi and later on Kazehana.
Kagari didnt react earlier to Minato because he isnt powerful enough, only after he got Kazehana does Kagari start reacting to him. So now the question is whether Kagari inclusion in his harem make Asami react (since she no longer have an ashikabi) or not.
Dont forget we are entering a new stage with the last sekirei is winged. What happened in this stage? what if one of the rule in this stage is you are capable to take other ashikabi's sekirei? If it does, then Manju would probably wished Kagari is turned over to Yukari
.. maybe they exchange sekirei, or maybe now Minato can take care Uzume in his harem if her ashikabi died .. Or Asami =3