Ron Kamonohashi's Forbidden Deductions

Ron Kamonohashi was once a brilliant student at a top detective academy, but a tragic mistake got him expelled and barred from ever working as a detective. Years later, a police officer named Totomaru Isshiki shows up at Ron's door, asking for help with a serial murder case. Ron, now a disheveled loner, reluctantly agrees. The unlikely pair team up to tackle their first case together.