Era of Samurai: Code of Love

It's the end of the Edo period.
After being attacked, you ended up being saved by the famous Shisengumi warriors. Even if their hands have the strength to hold a sword, they can't have the kindness to hold you...
A love fulled of desperation that'll put your life in the line, this love story with the Shisengumi opens its curtain.

[From Official Site]