The Monogatari Series puts heavy emphasis on exploring the girls that seem drawn to Koyomi Araragi, but very little time is spent on the man himself. Inside of Owarimonogatari Part 1, we get quite a bit of insight into what makes Koyomi tick.
Note: Due to being so far into the series, this review will be a full spoiler review of the story and its contents. If you have not watched Owarimonogatari Part 1 you should avoid this episode.
The opening for this episode is the OP for Owarimonogatari Part 1 called “Decent Black” by Kaori Mizuhashi. The closing for this episode is the ED for Owarimonogatari Part 1 called “Sayonara no Yukue” by Alisa.