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old retainer
旧臣たちは主君への忠誠を貫き通した。
The old retainers maintained their loyalty to their lord.
旧臣が集まり新たな計画を練り上げた。
The old retainers gathered and worked out a new plan.
滅亡した藩の旧臣が再起を図っていた。
The old retainers of the fallen domain were planning a comeback.