There exists a creature known as the 'Mesu-Juu,' which excessively seeks male genitalia. Originally classified as a dangerous special organism, they are now kept at Mesu-Juu Night Safari where they are shown fake dildos instead of real penises, making them docile. However, when one of the men visiting the Mesu-Juu Night Safari accidentally exposes his penis...the creatures' instincts begin to awaken...
