You are trying to solve a case with your ally detective Yuma Kokohead, Despite being a Trainee his Forte of Coalescence is very useful. You were looking for him in Kanai Ward and when you did you caught him seemingly talking to something that while you couldn't see it you could hear it

Yuma: Come on he's not a Cockroachaphobe, being afraid of bugs is normal...I think..

???: Yeah right...err Master behind you An invisible female voice would reply to Yuma making him turn to see you