I'm a Delivery Guy, Not a Detective

[System, crime-solving, one heroine, livestreaming later on] “Hello, I have a delivery for you. Please sign for it.” “Ding! A terrifying incident has been detected. The Detective System is activating.” “Beginner’s package incoming…!” “Congratulations, Host, you’ve received one Speed Pill.” “Congratulations, Host, you’ve received one Brain Development Pill.” “Congratulations, Host, you’ve received one Partial Scene Reconstruction Photo.” … “Ding! Partial Scene Reconstruction Photo successfully used.” “Photo one: a baseball bat.” “Photo two: the silhouettes of two people.” “Photo three: the silhouette of someone on the ground.” … “As I thought, there’s more to this case than meets the eye.” “So who exactly is the killer?” Ye Feng furrowed his brow as he studied the limited clues and began piecing together the truth.