Tokyo in the Near Future.
NOUNAI Senri joins the big pharmaceutical company RUOWA to cure his sister's incurable disease, but his body becomes weak after he takes RUOWA Metal, a drug that turns his muscles into metal.
At the same time, Senri, who is also killing people suffering from the same side effects, will be looking for the last user of the medicine, TAKAYAMA Eiki!
Will Senri be able to disclose this side effect to the public and recover himself?