Coach Nishijima is the coach of the Nishijima Boxing Gym and he trains boxers such as Matsuura.
History[]
Part II[]
Seeking Heights Arc[]
He arrived to the Kamogawa gym with Matsuura in order for him to spar with Ippo Makunouchi. When he entered, hw thanked Genji Kamogawa and Yagi Haruhiko for allowing the spar. He noticed Aoki Masaru, Tatsuya Kimura, Manabu Itagaki and Mamoru Takamura training and was impressed, knowing that the gym is known for it's harsh training that makes newcomers quit early. As the spar between Matsuura and Ippo began, he was the second for Matsuura. He stopped the spar early when he saw that Matsuura would only get injured if it continued, leaving the gym with Matsuura afterwards.