- Like the other "Twilight Ninjas", this card is named after the sun or the moon: "Nichirin" (日輪) means "the sun".
- "Chunin" (中忍 Chūnin, literally means "Middle Ninja") are ninjas that have demonstrated they are capable of supervising or training other ninjas. Note that the TCG names explicitly contain "Ninja", while the OCG names don't, so a archetype condition was added to make sure this card would be treated as a "Ninja".
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