Funeral Parlor Heir Relies on Grandfather's Inheritance to Catch Ghosts and Solve Crimes

My grandfather started a funeral industry, but he was sometimes mysterious. Some neighbors asked my grandfather for help, but they didn't care. The family was happy, and then my parents passed away. I followed my grandfather for a few years, and then one day he taught me something, but I didn't expect it to be something that I couldn't touch. A few years later, my grandfather passed away. I thought it would be normal, but it started unexpectedly. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.