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.
Even when I can't sleep at night
because it's too quiet
Selbst wenn ich nicht schlafen kann,
weil es zu still ist, geht es mir gut
Aunque no pueda dormir en la noche
Porque hay demasiado silencio
Mesmo quando não consigo dormir à noite
Porque tudo está silencioso demais