plot:
What if it's your last chance to fall in love?
That was the main goal of the protagonist in this story, Yamamoto Shigaru, a yakuza lord in the 3rd district in Tokyo. She became a yakuza lord in middle high. Even though she's the yakuza lord she can't refuse the will of her parents, one night after meeting a guy (who look's familiar to her), she went home and heard a devastating news from her parents.....ARRANGED MARRIAGE.... to a guy that's a heir of a large yakuza clan.

The guy's name is Satoshi Akira, a nerd bishounen that hates fighting.....
when he is in the middle high, there's this girl who protected him from bullies....