Mr. Nobunaga's Young Bride
ノブナガ先生の幼な妻 (original)
> One day, a girl who loves me will suddenly appear before me.
Middle school teacher Nobunaga has always been dreaming of such a gal game-like situation. However, the one who appeared before him was Kichou, a 14-year-old girl who proclaims herself as his wife. Appears to have arrived from the Sengoku era, she mistakes Nobunaga as Nobunaga Oda and urges him to conceive a child with her. Thus begins the age-difference love comedy between a gal game-loving teacher and a Sengoku era expert princess.
Starring Konomi Yuuzaki, Marika Tanaka, Ari Ozawa, Suzuna Kinoshita, Moe Toyota, Koudai Sakai, Akari Uehara
It's a comedy and animation show, and has a rating of 4.6 out of 10 from Imdb which is fairly low for this kind of show.
Watch it here
Not found streaming from United Kingdom.