Former Member/ Hiroyuki KUROMIYA, D3
- D3
- Birthplace: Nagoya City, Aichi
- Former school / Department: Department of Physical and Health Education, The University of Tokyo
- Programming language: R, Python, Ruby, PHP
- Hobby: Sumo, Bike, Ukulele
- Website: https://hiroyuki1993.
github.io/portrait/ - Recommended points of Ogata-lab: Hand drip coffee