There's some things about Kanamori Souichi that are absolutely infuriating. Having faked his blindness is near the top of that list. Still, when I see Wagatsuma pull up to protect them, I think about that chapter where they both caught a beatdown together and Sou took that shit like man (probably the last remarkable thing he's done) so Wagatsuma protecting him makes a lot of sense.
My question is: in the timeline before Gaku's timeslip, how did they find out about Kanamori's eye, if they even did at all throughout the events of high school?