“Useless High School” is a school renowned for its sexual aberrations and sexually ambiguous teenagers, The student president and vice-present flaunt their taste for S&M. Independent study and supplementary classes are done on homosexuality and transgenderism, and teachers and students alike leave school early because of sexually-transmitted diseases. Dasepo Girl Series features a brother with only one eye and his transgender sister, plus a poor girl literally wearing poverty on her back and her escapades into the world of sex with adults - and those are just a few of the many unique characters populating Mosseulmo ("Useless") High.
| Directing | Woo Seon Ho | Director |
| Directing | Kim Ho-joon | Director |
| Directing | Jo Woon | Director |
| Directing | Yoo Jung-hyun | Director |
| Directing | Jung So Yeon | Director |
| Directing | An Tae-jin | Director |
| Directing | Kim Sung-ho | Director |
| Directing | Jeong Min-seong | Director |