Nanami Route Cleared:

Honestly this feels like beating all of Riddle Joker, considering how much better Nanami is than all the other girls.  Riddle Joker is a fantastic game already, all it ever needed was Nanami.  If I had known about Nanami before I wrote '100 Waifus' she would've been one of them.  That's how great she is.

As for what happened in the actual route, it was basically what you could expect.  Nanami confesses to Satoru that she's always loved her Onii-chan since they were kids.  Then it does an amazing backstory about how Nanami was emotionally abused in her original family, which led to her being adopted into the new family with Satoru, and how Satoru gradually taught her how to open up and trust other people again.  Everything about Nanami makes so much more sense now -- she became a hacker because her birth parents wanted her to do crimes to make money for them.  She became a cook because she wanted to be useful to her new family so they would value her unlike her original parents.  She joined Satoru's crime fighting organization so she could continue spending time with him and look after him.  There's a meaning behind every trait she possesses, a purpose to it.  A life course.  She isn't just a random assortment of traits, but a willed individual pursuing specific ambitions.

Then Satoru and Nanami work with their friends from school to defeat a gang of kidnappers.  Nanami pays off all her friends for their hard work with home-cooked gyoza, and everyone lives happily after.  (How happy I would be to eat Nanami's home cooking!)

I also played Nanami's after stories because I wanted all the Nanami I could get.  Sadly it's all over now and I'll have to choose some other girl to romance.  On the bright side there's still plenty more of Riddle Joker left to play, and Noble Works after that.

Nozomi is the best girl in Cafe Stella, and Noa is the best girl in Tenshi Souzou, but Nanami is the best girl in all of Yuzusoft's long history.