Shin Nemoto’s Quirk coming into action in chapter 155
As I reread chapter 155 once again, this time I focused on a part that left me little confused at first reading asking why did Chisaki restructured himself like that or more specifically I’m talking about the hand mouth.
At first to me it looked like Horikoshi did it for the creepy factor but then I realized this hand was specifically reconstructed using Shin’s head, we can literally see the eye sockets of his mask on Overhaul’s forearm (pretty obvious if we pay attention).
(P.s. Shin literally became Chisaki’s right hand. This is a whole new level of being the boss’ right hand man.)
But what actually surprised me was that Overhaul using the mouth could actually tap into Shin’s quirk and Horikoshi shows it pretty good throughout the whole chapter.
I mean the only time he talks through this mouth is when he asks/shouts questions to Eri which are almost immediately answered by her.
And so combining this quirk (which if used correctly it could mentally break anyone with ease if you know where to strike) with the mental conditioning she had gone through.
Results to her returning to the battlefield.
With every question he ask he is literally torturing her and breaking bits by bits the little hope she had inside.
To the point she actually accepts there is no way that Izuku or any hero can save her. Also we see the horror in Izuku’s face as Eri confesses the truth in her heart.
Hell, Horikoshi even added the hypnotic swirl to emphasize this panel just like the scene when Nemoto was asking Mirio question and trying to mentally break him down.
Also another comparison I will make is both Mirio’s and Eri’s expression that is full of despair as they realized the truth in that was locked deep inside them. Although Mirio managed to overcome it and accept it the case with Eri more complicated.
In conclusion we can see Chisaki manipulative personality being boosted even more with Nemoto’s quirk.
P.S. I know many others might as well have figured it out but I wanted to throw my two cents in this conversation.