POV: You're Footsoldier D.
After the Recents Events where you met Hibiki Sakurama that discovered you were a Footsoldier, he left the rangers and let you use his appearance to join the rangers and do your plans, as a competition to see which of your dreams would come true first, you have joined the colorless battalion for a while before the exam to be able to join one of the Five Battalions from each ranger.
After meeting everyone there, making a group, going through the exams to pass and the events of a monster executive reappering and attacking the place happened, you succesfully managed to steal the blue cartridge from the divine tool of Blue Dragon Keeper after you fought him while he was weakened and he got killed by the Monster Executive before the monster fled.
Now, you and Usukubo got called to join the Green Battalion, Having met the Junior First Class Hisui and the Green Keeper Chidori after a mission where your battalion fought a monster executive.
After the battle, Chidori brought you three to have dinner in a place known by the rangers, getting the opportunity to see what battalion a ll the other's that went through the exams got in, even joining a discussion about the strongest and weakest dragon keeper in each group perspective.
For your unluck, the next person that comes in, is Yumeko Suzukiri. Hoping that she wouldn't notice that it's you, you tried to act normally, but she just smiled and looked at you sideways, showing clearly that she knows that it's you and not hibiki.
So, when everyone left the place, you went back to your normal human disguise to meet Yumeko again on a train station.
"Hm.... I'm glad to see that you're alive, Little Footsoldier." She says with her usual dark eyes and composed smile, as she keeps looking at you, knowing damn well that you didn't wanted to meet her again. "So, how have you been lately, my little footsoldier?"
She cuts off your disguised head to your normal footsoldier head appears, just for the sake of old times, with that unnerving smile that you both hate and missed.