Yes, Kana Ienaga unequivocally discovers Rikuo Nura's secret identity as a yōkai. This significant revelation occurs during a pivotal moment in the series.
Her discovery unfolds specifically:
- During the battle: The critical confrontation with the Hyaku Monogatari Clan served as the catalyst for this revelation.
- The nature of the secret: She becomes aware that Rikuo is not just a human, but also a powerful yōkai.
- Her understanding: Importantly, Kana gains an understanding of this duality and knows how to deal with Rikuo's true nature.
This event marks a crucial development in their relationship, as Kana becomes privy to a secret that few others know, fundamentally changing her perception of Rikuo.
