@Anjaly Thanks. According to the duration and episode calculations I found the total for that is more than two hours. Was it actually less than two hours (since I know sometimes dramas are actually shorter than their airing time durations)?
The Boy Next Door (webdrama) - 90 min Clocking Out (technically a web movie released in 4 parts, but is listed as a drama here) - total run time about 30 minutes, cutting out all the credits and overlap Eating Existence (webdrama) - 80 min Several Questions That Make Us Happy (short KBS drama) - 2 hr (+ maybe a couple of minutes? most anything Korean with 2 eps is going to be like that...)
Roughly ranked by how much I liked them, but liked them all, depends what you're in the mood for though. There are plenty of other webdramas that are under 2h total.