Tengu first.
Free Step Dodge
Forlorn Penguin
bingsoo
Momiji!
CyberEvil
I wouldn't enjoy seeing her at all, myself. Momiji would be an excellent fit though, as would Genshin
bingsoo
Oh wow Genshin would be interesting. Momiji is a necessity at this point.
Project Bokuho
Let's just focus on Leon, Ein and Tengu for right now.
bingsoo
and Momiji 
Forlorn Penguin
Project Bokuho wins. And four Ninja characters is way more than enough as it is.
Keved
Nice choices guys, Momiji would be awesome! but watching fem-trooper Mizuki throw her opponents in the air & juggle them with a hail of bullets from her gun would be the mutts nuts imo.