Synopsis:

Would you like to start with a partner (tentative)? ”
--A world where there is a second gender in addition to men and women: [Dom who wants to dominate others] and [Sub who wants to be dominated by others].
Asako Saeki, an office worker, is considered by those around her to be a "cool Dom", but in reality she is a [Sub] who cannot come out due to past trauma.
Once a week, Asako listens to shino, a Dom who is active on SNS and has a nice voice, and suppresses her desires by playing with him.
However, her health worsened when shino's distribution stopped, and she collapsed on her way home. As she listened to the voice of the man who helped her, she felt so good... "Maybe...Shino-san!?"
Dom/Sub universe starts with a trial relationship!