It turned out that one of the Hourai's gem branches had been kept inside the enclosed space in an ink brush painting belonging to Nuinoin and his wife. With Byakuya's help, Aoi enters the world of the ink brush painting with Ginji, Ranmaru, and Chibi.
Listen to the voice from the hidden realm
Höre auf die Stimme aus dem Jenseits
Escucha la voz del reino escondido
Ouça a voz do Reino Oculto