This is Atsuko Hiramatsu, my first BSD OC. She is an agent for the Special Division for Unusual Powers. Not much is known about her background, but she has parents back at home and her older sister works at the Armed Detective Agency. Atsuko is a coffee addict and likes to draw or drink alcohol at Bar Lupin occasionally, if she has the time. She is good friends with Ango and she is acquainted with the other agents of the division. Her weapon of choice is a pistol/gun. Atsuko has the ability to turn invisible for 30 minutes at a time at night time. There is a cooldown of 10 minutes. It can be activated from 8 PM to 5 AM. If someone touches her while the ability is active, it will be inactivated and she will reappear. If she is holding someone else before her ability is activated, however, the other people she is touching will also be turned invisible. The ability can still be inactivated if you touch another invisible person while invisible. She is shy and introverted, usually only talking to people when she needs to, unless she is with her friends/coworkers. Atsuko can come off as mean and ignorant when she stays quiet, but she just doesn't feel like having a conversation.
I used Yosano as a base for her, while referencing Tsujimura, Kyouka, and Kunikida. I didn't use an author for the name and ability. I think I accidentally made her look too young.