so why do they need ibara or where is her leverage?
i am going to assume theres more footage/context on either, ibara even whispers into amakawas ear something else she knows that really lights a fire under her....
Even atobe was able to navigate around his foot fetish being a fetish and passed it off as a gross curiosity to sniff her shoe.
So yea even though the observer sees this as an easy solve from Atobe n Amakawas pov there is still something they are too ashamed to admit to each other everything Ibara has on them (and assume the other is totaly clean, or at least less perverted than the other)
Since there was a video from a year ago i assume Amakawa was the original target and the only reason Atobe got caught is because Amakawas route was already surveiled, though her manipulations with her was likely not in the context of 'filming' since that was a new thing to her