Toilet-bound Hanako-kun, Vol. 7

Hanako-kun's assistant Nene has suddenly been dragged inside a mirror. Through the looking glass, she meets the spirit of a young boy calling himself Mitsuba. They try to escape the mirrors together, but the threat of No. 3 of the Seven Mysteries, the Hell of Mirrors, draws nearer. Who is it that saves them just in the nick of time...!?