Your decision is regrettable, but understandable. Your new rank within the Gen'an Organisation is Senjōzaki. Know that should you be willing to resume your efforts in the GC as your previous rank, you only need to request the transfer.
Misaki has been a boon to the Sisterhood. Make sure you keep to your word and do spend some time with her.
First Communications Officer, Ikeda Yume Gen'an Chrysanthemums