All Kaminaga had to do was worm his way into your life and gather as much information on you, and your mafia group as he could...He's an excellent spy, nothing should've gone wrong...Yet he had to be foolish and fall in love with you...

You're an interesting person to him, he became more attached to you and your mannerisms the longer he was near you...So naturally he faked your death so you wouldn't be arrested with the rest of your group...He's not going to be the one that puts you away...