Supplementary Investigation: Off-Duty Gavan Episode 10

On MultiEarth ?8018, Setsuna and Kunai are talking about the similarities between their Ninja and Samurai lifestyles. Kunai asks Setsuna if he can cut down things he can't see. Kunai says that if he ever faced an invisible foe, he could still cut them down. With a clear head and determination to protect his loved ones, he could cut any opponent, even if they're invisible. This inspires Kunai, who answers that similarly, he would even phase through unpassable walls if determined enough. Setsuna asks him why he started the topic. Kunai answers that he recently felt an unpleasant presence passing through him. He then feels it again, but he and Setsuna can't see the humanoid celestial figure sitting in the room. Setsuna asks if he's talking about a ghost, scaring Kunai for a moment before he denies he's afraid of ghosts. The two decide to attack the invisible figure. Setsuna tries to cut it down with the Gavarion Blade, but accidentally slices Kunai's pants, revealing his underwear. He tries to help Kunai, but the two bump their heads and fall unconscious, confusing the celestial figure. Later, the two wake up with paper towels on their foreheads, and Setsuna realizes that someone tended to them while they were unconscious. (Source: Project R.E.D. Wiki)