Widely different culture right next door for some reasons. Stellar worldbuilding right there. Just hope it'd just stay silly and won't nosedive into "superior nippon culture".
Cool fight but your katana is barely fitting in that space.
Err, mister badguy over there, do you have a working brain? You already hijacked the damn train and planned to derail it why bother trying to kill the target up close. And with that "work" policy how the hell are you still in business?
RIP maid, your love won't go anywhere while that "strange" girl standing right next to your lady.
Overall, kinda fun but overly cliche. I think they ran out of idea some time ago and start reusing old concept but replacing "generic male lead" with a female one. But hey we got yuri out of it so it won't be that bad for the time being.