Obuchi Kotaro
Key name (used for sorting): Obuchi Kotaro
1992-05-14 –
Citizenship: JPN
Affiliation: Nihon Kiin
Rank progression
| 1p | 2008-09-01 |
| 2p | 2011-02-01 |
| 3p | 2013-09-13 |
| 4p | 2015-02-01 |
| 5p | 2020-04-03 |
ID: 598. Last changed: Feb. 15, 2025, 6:41 p.m. by ug.
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