Rui Rui Hizuki to become a call girl using her femininity as a weapon, is satisfied financially and sexually, but she has some anxiety and worries. She wants to do a job where she can shine more as a woman! At that time, she receives an invitation to a girls' gathering from a group of TSF changers in the same situation... The stories of the three women who changed jobs to become the opposite sex, was TSF change really their calling?