Mattaku Saikin no Tantei to Kitara

Nagumo Keiichirou, a former teenage detective prodigy, finds himself at a crossroads. Years have passed since his glory days, and now, at 35, he's running a failing detective agency. His body is failing him, and his business is failing even more. The cases have dried up, and he struggles to make ends meet. His once sharp mind seems dulled by age and circumstance. His monotonous existence is disrupted when a high school girl unexpectedly enters his office, expressing her desire to work alongside him. This young woman's arrival presents a potential turning point. Will her youthful energy and perspective be the catalyst Nagumo needs to rediscover the passion and brilliance that once defined him? Can she help him escape his current rut and reclaim his former detective prowess?