Gorō Shinoyama

Gorō Shinoyama (四乃山 五郎 Shinoyama Gorō) was a treacherous member of the Shinoyama Group.

Appearance
A heavy-set man in a business suit.

Personality
Gorō played the act of a cordial relative. He was ambitious and pursued his own agenda, though was easily cowed by Rozan and his intense personality when he was annoyed. He displays pettiness as his main motivation for plotting to kill his relatives were to get back at Rozan for looking down at him.

Background
Gorō was not a blood relative of the Shinoyama Clan, but was part of the clan through his marriage with Rozan Shinoyama's niece. Gorō was part of the pharmaceutical division of the Shinoyama Group though was often displeased by how his cousin-in-law Gaku Shinoyama ran things and tried to go over his head by speaking to Rozan but was always rebuffed. He was also an occasional guest at the Shinoyama Mansion, though Polka Shinoyama hardly knew his name.

Two years before the story starts, Gorō got in contact with a man named named Know who claimed to be Fire-breathing Bug. Gorō conspired with the psychopath to kill majority of the Shinoyama Clan with a trap in the boiler room. While at the Shinoyama Mansion, where Know had assumed the identity of a servant, Gorō discussed their plan to pin the blame on Kazuki and Shizuki. Their conversation is overhead by Suzuka Shinoyama. Know detects her just as she is running away.

Suzuka runs away to warn her family; however, quickly after she enters the boiler room, it bursts into flames killing her. Though the plan went awry, Gorō and his accomplice decided to strike again by biding their time to eliminate the entire clan.

Shinoyama Estate Arson
Gorō was about to begin his plan to murder the entire main branch of the Shinoyama Clan. Though he made one last alteration to include the returning "Polka Shinoyama" to the hit list that he gave to "Fire-breathing Bug". Later while having a meal with the rest of the family, and listening to "Polka" story of his journey of self-discovery and him introducing Misaki Sakimiya, Gorō mused he was like Rozan. When Rozan made his appearance, Gorō attempted to have the head of the family listen to his ideas on the pharmaceutical division, but he was sternly told by the old man that he was retired and should speak with Gaku instead. When Gorō attempted to try and convince him, Rozan warned him not to make him repeat himself, causing the man to quickly apologize and excuse himself from the mansion.

Gorō is later seen in his car driving on the highway, away from the mansion. The man anticipates that "Fire-breathing Bug" has initiated their plan, unknown that it was foiled due to the intervention of Corpse God and Misaki. While in traffic the man is hopeful that the plan is successful in the deaths of many of Rozan's grandchildren, happy to have caused pain to the old man for embarrassing him so many times. Unbeknownst to him a helmeted woman on motorcycle pulls up next to his car, and after fitting a leather-brass knuckles proceeds to smash through Gorō's side window punch him. Once he is knocked out, said woman is revealed to be Yochigi, who then takes him to the hidden basement of the headquarters of Shinoyama Security.

Upon awakening Gorō is greeted by Takeru Shinoyama. The older man is at first confused by he is being detained like this by his own relative, until Takeru reveals that he is aware that Gorō ' conspired to kill members of the clan. While Takeru is more concerned about the damage this will do to their family's public image, he opts to remove Gorō' and make him look like a deserter. And also was aware that Suzuka's death was the result of an arsonist and not an accident, and kept quiet as her death gave the public eye sympathy to the family. If Gorō' plot was revealed, then it would be for nothing. However to Gorō''s shock Takeru decides to capitalize on his sister's demise by making her an unfortunate victim of Gorō' s plot. Gorō tries to play innocent, but Takeru tells him that the charade is over as the arsonist Gorō hired was already caught,

At first Gorō thinks this to be impossible, until Lemmings appears and Takeru reveals that it was the troublemaker who had caught the arsonist. There are other shadows in the basement, which Gorō realizes are members of the rumored Dragon King's Palace Agency. Gorō tries to maintain his innocence, but Takeru has a little surprise, a recording of him giving the order to burn the Shinoyama mansion. Though to Takeru the recording is not reliable as evidence and so directs Yochigi to get a full confession from Gorō but torturing him.

After a few minutes under Yochigi's care, Gorō is left bleeding and many of his teeth missing. He tries to plead with Takeru that he only did it because he was being threatened by "Fire-breathing Bug." However Takeru tells him coldly that his betrayal to the family can only be explained by his sheer stupidity. To Gorō utter dismay, Takeru reveals that the man who believed was "Fire-breathing Bug" was an imposter as Lemmings had multiple encounters with the real entity.

Trivia

 * According to Rozan had Gorō found the will to stand up to him, he would have been taken seriously in matters of the clan.