Strum My Voiceless (Yaoi)

The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised.

In a secret gambling den controlled by the underworld's secretarial society, where executives engage in sex battles within a fight ring, using low-caste pawns [secretaries] to compete in contests of bodily fluids to determine victory or defeat.
Undefeated and ranked No.1 in the secretary rankings, Ryuga Akabane.
While smoking a cigarette and walking with the money earned from battle rewards, Ryuga bumps into a man, and after a heated exchange of words, ends up handing over all the money as compensation for his ruined suit.
The next day, determined never to cross paths with the man again, Ryuga heads to a new employer's company?only to find the same man from yesterday waiting there...
Questioned by the sadistic, sharp-witted executive Onizuka about whether Ryuga can "perform properly," Ryuga, provoked and eager to prove his worth, pushes him down. But Onizuka turns the tables and strikes back??