Someone in the later century wants to define the meaning of the will.

Then, he finds limbs from people who are superior in different area with special abilities and joins the parts to form one complete body.

He wants to see the five wills in five limbs fighting for one body and results an evolved species.

A couple incidentally fell in the experiment. It arouses the interest of the man to know what will happen when the couple really join together in one body forever.

The man put five wills in a body and let them to fight for the only body.