Detective Slug

There was a little slug who wanted to be a detective, so he built a detective agency, and some customers came to report crimes every day. The little slug helps them get through it, but great trouble awaits. The little slug and his friends were not afraid of challenges or difficulties. They helped the reporter solve the cases one by one and gained the trust of the animals. Who is the little slug? What does it look like? How was the case solved? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.