Supplementary Investigation: Off-Duty Gavan Episode 9

Daisuke walks into Cosmo Gavarion, only to find Kunai feeling the walls. Daisuke calls the Ninja, who only notices him after he shouts his name three times and gets startled. Kunai tells Daisuke that he likes the wall's texture, and Daisuke asks him if he can feel something special when passing through walls. Kunai confirms that, and when Daisuke gets interested in it, he asks him to feel the wall too. He tells Daisuke to close his eyes and listen to the wall. Daisuke does so and hears the wall talking to him. Reiji comes in and finds the two feeling the wall. Daisuke tries to make him feel the wall, but Reiji runs away, and Daisuke follows him. Kunai tries to follow them, but a humanoid celestial figure passes through him. Kunai doesn't see the invisible figure, but notes that passing through it felt unpleasant. (Source: Project R.E.D. Wiki)