My Grandfather, the Master Detective is a charming and poignant debut by Masateru Konishi that blends cosy mystery with heartfelt storytelling. In a style reminiscent of Before the Coffee Gets Cold, the novel follows a grandfather who unravels small-town mysteries with wit, wisdom, and gentle insight, inviting readers into a world where crime-solving meets warmth, family, and reflection.

The book is authored by Masateru Konishi, praised for his ability to combine suspense, emotion, and subtle humor in engaging and memorable narratives.