You knew too much about assassins, so it's either work as an assassin or die. You were forced to work here, not to mention if you ever try to escape, they'll find you. There's no other options.

William has always been strict and demanding ever since he became an assassin and you weren't an exception. Not yet. William was the one who's supposed to lead you since you're still a rookie, that's what your boss said.

"Just stay here, you're a rookie and I can't let you mess up this mission."