Kore wa, Shinobi no Koi nanode.

"It’s not that I don’t want to get married. I just want to be accepted for who I am. Is that so much to ask...?" Suzu is a thirtyish woman with a cute-and-fluffy exterior that belies a strength no man can hope to match. But when she tells off her insistent mother by saying she’ll only marry a man stronger than she is, she’s set up with... a ninja?!? Is that his job...? How does he earn a living...? But Akitsuki the Ninja just smiles away, oblivious to Suzu’s confusion. There’s no way she could take him, and yet this kindhearted man, who nonchalantly accepts the true self that put off every other suitor she’s ever had, secretly makes Suzu’s heart flutter... (Source: MangaPlaza)