The chapter "Under The Stars", with Kana heroically escaping the force that was binding her to her place of death to help Daikichi in his moment of need. Then keeping him alive (when, by all rights, he should have died) with a blazing inferno of her own life force that also leads to his rescue. Although she "survives", she made it clear she was willing to pull a Heroic Sacrifice if that's what it took to save Daikichi.
