His surname is Shinoda. In Japan, surnames are listed before given names.
The chief trainer of Aoki Masaru, Kimura Tatsuya, and Itagaki Manabu, Shinoda carries out Coach Kamogawa's tradition of strict training. Aoki and Kimura have even referred to him as "The mud-fighter producing trainer from hell".
Though arguably the least prominent of the main characters, he is shown to still have a good boxer's eye. He is the creator of the inspirational pun Gattsu de Gattsun Gattsun da! (ガッツでガッツンガッツンだ!).
Shinoda has had very little development in the story until very recently as he nurtures Itagaki Manabu.
The Resignation Letter
In Round 712, while Itagaki is preparing for his upcoming match against Hoshi Hiroyuki, Shinoda ask how Itagaki is doing, and comments about both of them working hard and leaving behind no regrets. He tells Aoki and Kimura to cheer hard, otherwise they will be drowned out by Osaka Fan's. Aoki and Kimura mentioned they don't need to worry, since they got "A Trainer From Hell" looking after him.
Prior to the Itagaki vs Hoshi match, Yagi tells everyone that Shinoda turned in his resignation letter. Shinoda tells Kamogawa that it he is afraid it might be exactly like Aoki and Kimura say, where he is a a trainer from hell who only teaches how to fight in sludge matches.
Yagi tells him not to take it seriously, but Shinoda believes he failed at both Kimura and Aoki's title matches. He wasn't able to tap into enough of their potential then. If Itagaki were to lose on top of that, then it would be his fault for not helping him utilize his talent as well. Shinoda tells Kamogawa if Itagaki loses his next match, then he will take responsibility for it.
Itagaki starting to feel the pressure prior to the match. Kamogawa tells Itagaki to get it together, do his best and have no regrets. If he losses the fight half halfheartedly, he needs to think about what will happen to Shinoda. Shinoda stops Kamogawa from mentioning the Registration Letter since he doesn't want to add more pressure to Itagaki.
At the start of the match, Shinoda tells Itagaki to focus and watch all of his moves. Itagaki keeps on repeating focus in his head. When the bell rings, time seems to slow down for Itagaki. When Hoshi throws his first punch, Itagaki throws a sharp uppercut instead causing Hosi to get Knocked down. Itagaki is starting to tap into his potential.
Class A Tournament II
Most notably, his bond with Itagaki is brought to light in the Class A tournament in which he brought out "Itagaki's true potential" against Karasawa Takuzou. Later he was acknowledged by coach Kamogawa as being a good partner for Itagaki after getting Itagaki to calm down by playing Shiritori with him when fighting Saeki Takuma.
The Shape of a Boxer's Fists
When Fujii Minoru visits the gym (in Round 1130, he does mitt training with the members of Kamogawa Boxing Gym. He mentions he used to be an (Amateur) out boxer in the past, and once ran into a Prodigy in a City Tournament. Fuji thought if he could beat him, he would turn Pro. Instead, Fuji was taught a lesson, and his dream didn't last.
While mitt training, Fuji mentions that Aoki's punches were like the Prodigy. Later on, when they discuss the shapes of their fists, Aoku's is Round Shaped, where Fuji mentions they tend to be slippery and can roll off target. Shinoda arrives, everyone discovers that Shinoda and Fuji have a history together.
Fuji and Shinoda's Past
In the past, Fuji wondered why he can never beat Shinoda. Shinoda tells Fuji that he is going to turn Pro, and looks forward to seeing him in the ring someday. But Fuji tells him that he thinks he is done as a boxer. Shinoda thought they shared the same dream- To go to the Olympics or become a Champ in the Pro's. Fuji tells him to go and make that dream come true, while he decided he wants to report on boxing instead. He wants Shinoda to become JBC Champion, then World Champion, and he will write about him as he makes his way up. They made a promise together.
That is when everyone in Kamogawa Gym discovered that the Prodigy that Fuji was mentioning was Shinoda. Shinoda tells them that he lost his Pro Debut match, and lost over and over again. He only fought in 6 matches, and ended up with an average record. Everyone thinks instead of turning into a Fist of a Prodigy, it became a Fist of Betrayal. Shinoda apologizes to Fuji about not able to fulfill their promise, but Fuji tells him it is okay, since he just wasn't suited to be a Pro.
During Ippo's Retirement Arc
In Round 1213, Shinoda visits Ippo in hopes to get him to return to boxing. However, not as a boxer but as a trainer. Kumi yells at him for trying to get Ippo back into boxing, which makes Shinoda scared of her.
Shinoda explains that he gets nervous when he is yelled at by a woman. Shinoda tells everyone that he once paid a visit to a "Free information office" (a service that points people to lewd businesses for free like Cabaret clubs, Soaplands/brothels, to even prostitution.) When he picked his destination, he turned around, only to find his wife standing there. It wasn't the first time it has happened, so he got into a lot of trouble for it. It got so bad to where his hair started to fall out. Ever since then, he always get nervous around angry women. Ippo's mom thinks Shinoda is hen-pecked, and he agrees.
When Ippo starts to ask what a "Free information office" is, Shinoda starts to lose hair again, and decides to leave. While leaving, Shinoda tells Ippo that they are short handed since Kamogawa is in hospital with a cold. Ippo is relieved when he hears that. Shinoda mention that Yagi and him talked, and the plan was that the coach only focus on Takamura for now, and to get someone we trust to help out in the meantime. Ippo tells Shinoda that he needs some time to think about it, but he will have answer for him soon. Shinoda notes that before Kimura's match next week would be ideal. Shinoda leaves.
|WIN||2-4-0||Unknown||Decision||6(6), 3:00||19??||Tokyo, Japan||?|
|LOSS||0-2-0||Unknown||N/A||?(4)||19??||Tokyo, Japan||Match after Pro debut|
|LOSS||0-1-0||Unknown||N/A||?(4)||19??||Tokyo, Japan||Pro Debut|
- During Kimura Tatsuya's match with Ippo as a 2nd, Shinoda is seen wearing a hat. During the course of the match, Shinoda is wearing it to cover up a new bald spot.