My F-Class Sub

Han Yoojin is a sub working at an animal training center. He works hard to support his little brother who is currently in medical school. His brother asked him to keep his secondary gender a secret and Yoojin agreed in order to keep his overprotective little brother's mind at ease.
Sung Hyunjae is the CEO of the largest company in Korea as well as a Dom. He has had a difficult time finding a sub that can satisfy his desires, that is, until he encounters an animal trainer that peaks his interest.

This story takes place in a Dom/Subverse AU in which everyone is born with a secondary gender, either Dom, Sub, or Neutral. Includes BDSM themes and scenes.

This story is for mature audiences only.

Includes some elements from the original story "The S Classes I raised." But is its own story. You do not need to have read "The S classes I raised" to understand this fanfic, but I highly recommend you do because it's a great story with great characters.