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What's New. (Only available in Japanese.)
- 2023.08.24
- HIROTA News Letter Vol.32 is released.
- 2023.08.01
- Notice of summer holidays in 2023.
- 2023.07.24
- HIROTA News Letter Vol.31 is released.
- 2023.06.26
- HIROTA News Letter Vol.30 is released.
- 2023.05.24
- HIROTA News Letter Vol.29 is released.
- 2023.04.24
- HIROTA News Letter Vol.28 is released.
- 2023.03.24
- HIROTA News Letter Vol.27 is released.
- 2023.02.24
- HIROTA News Letter Vol.26 is released.
- 2023.01.27
- HIROTA News Letter Vol.25 is released.
- 2022.12.23
- HIROTA News Letter Vol.24 is released.
- 2022.11.29
- HIROTA News Letter Vol.23 is released.
- 2022.11.10
- HIROTA News Letter Vol.18-22 are released.
- 2022.05.23
- HIROTA News Letter Vol.17 is released.
- 2022.04.26
- HIROTA News Letter Vol.16 is released.
- 2022.03.25
- HIROTA News Letter Vol.15 is released.
- 2022.02.25
- HIROTA News Letter Vol.14 is released.
- 2022.01.26
- HIROTA News Letter Vol.13 is released.
- 2021.12.13
- HIROTA News Letter Vol.12 is released.
- 2021.04.07
- Our CM is on air.