Did you say detective types??? Yusuke might not be of much help as far as the actual ~deduction 'n shit~ goes (which I guess shows just how much of a misnomer the "detective" part of "Spirit Detective" is), but if he and Kirigiri were to go SOLVE A MYSTERY TOGETHER, he could at least bust down doors for her and keep monsters off their tail and be a sounding board for her brilliant revelations so that she doesn't have to go without a protagonist to explain shit to. Every Brain needs a little Brawn to balance them out, right? o/