@hyrule13
Last panel doesn't make any sense. Shunpei tells Ayari, they don't know where she is looking at, and she reacts like he told her the opposite. My small knowledge of Japanese and Jisho.org abilities tell me it's likely that she was trying to make out his dick, but he shot her down with "No way you'll see it in thermal vision" (subject was not specified in a sentence). This way original image makes sense, so please fix it.
Not sure why everyone thought he had a monster girl fetish, as he seems pretty indifferent to Ayari's transformations most of the times. Sorry to break your bubble, but the guy seems to be the opposite of the Sawarida.