Fight as Hagure
     Highlight  Akari  and  press X(17x), wait one second, and press X
again. When you hear her voice, press A or Y to select her.

Use Normal Kaede
     Highlight  Kaede and press X(14x). When you hear his voice, press
A or Y to select him.

Use Kohryu
     Highlight Yuki and press X(19x). When you hear his voice, press A
or Y to select him.