Thanks! I can only speculate, but at 19:01, consider explicitly writing “a detective” or “detectives” instead of “you”. Perhaps “A detective can't crack every case.” I may easily be reading too much into it, but I think _maybe_ she’s hinting that she has something one can’t do while known (by friends and foes alike) as a detective, so she stopped being one—but is, in fact, still working on her case in secret.

Agreed, I hear some emphasis on the 探偵では. Thanks, I'll work that in for the v2 batches!