We meet again... (Karma x Nagisa)

Fanfic of Assassination Classroom Brief - Karma is now an adult, and Nagisa had disappeared after successfully assassinating Koro-sensei. No clues or traces of Nagisa's whereabouts are known. Until one day... BTW - This is shounen-ai/yaoi, or boyxboy. I don't know if some well, 'scenes' will appear. I just go...