Tomohiro Miyoshi

Tomohiro Miyoshi (三好智広) is a worker from Group E paying off his debts by working in the underground labor camp.

He is a member of the 45ers.

History

Jōkyō Seikatsuroku Ichijō

He met Seiya Ichijō and Murakami while they were working at a warehouse. The three remain friends even after finding other part-time jobs.

Despite receiving financial support from his parents while living in Tokyo, he spends it on pachislots and lives off of his meager 50,000 yen monthly income, making use of many cost cutting "life hacks."

Tobaku Hakairoku Kaiji

He keeps a record of all the wins in Undergound Chinchirorin which makes Kaiji realize how Ōtsuki is cheating.

He and several others form a group called the 45ers (people who earn only 45,000 perica due to debt) and sacrifice to get out of debt and start earning their regular 92,000 perica help Kaiji defeat Ōtsuki.

Tobaku Datenroku Kaiji

After getting out of the underground labor camps, he and Maeda start working for Takashi Muraoka in his casino. They manage to convince Kaiji to gamble with the president by convincing him that they can help him cheat in the gamble, which was Mine Field Game “17 Steps”.

Unfortunately for Kaiji, it was the opposite situation; Muraoka managed to convince them that Kaiji must be hiding excess money that he won from the Bog due to the fact that they are ignorant about the massive loan Kaiji took from Endou and that the payout from the Bog was divided among the three who participated. This resulted in them helping Muraoka instead to cheat while gambling with Kaiji.

After Kaiji manages to figure out their betrayal, he attempts to explain to them only for his words to fall into their deaf ears. He later beats them both up before finishing the gamble with Muraoka.

The misunderstanding between the three is never cleared up.