段級位制 (だんきゅういせい) — ranking system based on dan and kyu (in martial arts, go, shogi, etc.)
段級位制
Ranking system based on dan and kyu (in martial arts, go, shogi, etc.)
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段級位制 (だんきゅういせい) — ranking system based on dan and kyu (in martial arts, go, shogi, etc.)
