You get this in the second half of the "Where is Jade?" chapter.
After you end up in an apartment in a conversation with Agatha, toward the end of the conversation you're given the option of handing Jade over. You get this achievement for refusing.
Note, that if you want to get both this and
in a single pass (without redoing the entire chapter), you can choose one, and the moment it unlocks, quite and continue from the last checkpoint, which is the start of the conversation with Agatha.