Please recommend a manga with a ninja male lead and a young lady female lead as the main characters.

The male protagonist is a ninja, and he protects the female protagonist's family during the era of the male protagonist's family. The female protagonist is very confused and weak (big breasts, short stature). The female protagonist's mother is very powerful, and the female protagonist's mother's weapon is the Green Dragon Crescent Blade (the female protagonist's mother appeared at the beginning). One plot is that the male protagonist's brother comes over and wants to replace the male protagonist to protect the female protagonist. Another plot is that the female protagonist is drunk for some reason, and then she also misses her mother, who is very good at using a blade. It's a very long manga.
At the beginning, the male protagonist met her at the school in the female protagonist's district.

Answer 1

I recommend "Picking up a Koba Ninja" to you. The male protagonist, Uchiha, picked up a comic book that was slightly ridiculed and noted by loyal fans. From then on, he married a fair, rich, and beautiful woman and embarked on the peak of his life. I hope you like my recommendation. Muah ~