Nobunagun
ノブナガン (original)
Ogura Sio's world changes forever when her trip to Taiwan is interrupted by a monster attack! Her life is spared by the arrival of a clandestine government agency that battles the monsters with weapons possessed by the spirits of historical figures.
Starring Tatsuhisa Suzuki, Nobunaga Shimazaki, Yuu Asakawa, Shiori Mutou
It's a animation and action & adventure show, and has a rating of 6.6 out of 10 from Imdb which is usually fine for this kind of show.
Watch it here
Not found streaming from United Kingdom.