First names for Hirotsuka
- Yukina Hirotsuka 2
- Genta Hirotsuka 2
- Yumiko Hirotsuka
- Yaeko Hirotsuka
- Piko Hirotsuka
- Narumi Hirotsuka
- Naoya Hirotsuka
- Misa Hirotsuka
- Kuniyuki Hirotsuka
- Keiichi Hirotsuka
- Kazu Hirotsuka
- Evelyn Hirotsuka
- Chikako Hirotsuka
- Chika Hirotsuka
- Akihito Hirotsuka