The end of the beginning (karma x Nagisa)

After graduation karma and Nagisa grew up and got jobs like normal people. Karma had a company and Nagisa was a teacher for a 3-E class in another school.

But after some time apart they haven't seen each other in 7 years.
But they disused they should meet up at their old school building and remember the times they had went on missions and how it felt to be a assassin.

And at the time they thought it would be fun to go an a little mission themselves,for karma.

He is currently on a deal with another company but there have been rumors about it being fake. So they set out to find out.

But what if they begin to love the way it feels like to be an assistant. And what if that's not the only thing they love..?