Kimura Kazuki never imagined that he would be able to get a person who could help him accomplish an apparition's obsessiveness offline, and all he had to do was to reap what he has not sown.
And to think that that person was a young girl somehow made him feel ridiculous.
Of course, he was also thankful for Chiba Shiori's reminder. If not, he could not imagine how long it would have taken him to realize that obsessiveness could also be achieved through this way.
Maybe this method would occur to him in the future, but to be reminded gave him a more in-depth understanding of his obsessiveness. Also, without Chiba Shiori's reminder, this "future" might only occur afterward.
Now that he had a more broadened mind, Kimura Kazuki started to do a lot of thinking.