Dr. Muscle Beetle

Overview

Human Drama about a muscular idealistic man who dreams of bringing peace to humanity by making them fit and ripped. But after he borrows money from shady gangsters to open his own gym he's driven into a corner soon and forced to participate in a robbery of an elderly entomologist. A fateful encounter for this odd duo which leads to the realization that life has to be lived to the fullest without holding back just like insects acting on pure instinct.

Source: AniList