However, since the incident, Koyomi seems to meet girls who have an apparition-related issue. They can vary from being weightless, becoming lost no matter what she does, and even being possessed! Being the nice guy he is, Koyomi helps each girl throughout the series.
This is my “Why you should watch the Monogatari Series” thread. Please share this to anyone who may be interested in the series. If you yourself have not experienced the series, welcome and enjoy reading this! I will try to make this non-spoilery as possible.