| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | ninja | Feudal Japan | Regarded as elite covert agents and highly trained spies | 1 |
| 2 | ninja | Medieval Japan | Covert agents and mercenaries skilled in espionage, assassination, and unconventional warfare | 1 |
| 3 | samurai | Medieval Japan | Highly skilled warriors who served feudal lords and upheld the code of Bushido | 1 |
| 4 | samurai code of honor | Feudal Japan | Central to the way of life and highly respected | 1 |