Reimeiroku Reference To Iba Hachirou?

Reimeiroku reference to Iba Hachirou?

So today I decided to watch this video, because I remembered that there were some funny bits in it, but I came across this: 

Kazama Chikage: For example, do you remember the man on the ship heading towards Hakodate?

Yukimura Chizuru: Are you referring to.. the man with a single arm and couldn’t move?

My Iba Hachirou wikipedia translation here mentions that Iba Hachirou lost an arm and headed to Hakodate. 

Here’s a translation from 5:26 till 7:16 of the video

Kazama Chikage: What I’m waiting for.. is your resolution

I stopped what I was doing and looked towards his direction, thinking that I misheard what he said since he was speaking very softly

Kazama-san’s facial expression had changed to a sterner one from earlier on

Yukimura Chizuru: My resolution?

Kazama Chikage: You should understand that the era of the Shinsengumi and the Bushi spirit has ended, right?

I was taken aback by his sudden question, I looked away and nodded slightly

Ever since the Bakufu government ended, the Meiji government requested for the voluntary surrender of the domains to the Emperor and the position as bushis were abolished 

It also seems that the government is desirous of banning katanas 

I guess the era where bushis swayed their swords and fought has really ended

Kazama Chikage: However, there are many people who are unable to throw away their swords. These are the ghosts of the previous era as they have not accepted the new era.

Yukimura Chizuru: Are you referring to.. the Shinsengumi?

Kazama-san shook his head after I finished my sentence

Kazama Chikage: No, the Shinsengumi had chosen their graves and left this era gracefully.

Kazama Chikage: The ones I am referring to are those who are still wandering and looking for their graves

Kazama Chikage: For example, do you remember the man on the ship heading towards Hakodate?

Yukimura Chizuru: Are you referring to.. the man with a single arm and couldn’t move?

I remembered that there was such a person on our way to Ezo, when I wanted to confirm the whereabouts of the Shinsengumi

He was a young man that seemed very lost and sad. I wonder whether he was somebody who was associated with the Shinsengumi.

Kazama Chikage: He is a person who has lost his grave, he is a ghost that is longing for the lost days. 

Kazama Chikage: He was unable to find a place to call his, I wonder what that person was looking at and what was he thinking back then

Kazama Chikage: But, since he sustained a lot of injury, there’s not many places he can go. He may still be chasing after the past, he may have carried his regrets and gone on with life, or-

Kazama Chikage: He may accepted the new era and gone on a new path

Pretty sure that this entire scene is referring to Iba Hachirou. Needless to say, I was pleasantly surprised that Otomate had already incorporated this character during Reimeiroku.