Ghost Stories/Gakkou no Kaidan (Dubbed) S1/E7

Another ghost is let loose in the old school building, which inhabits an old mirror (うつしみ, Utsushimi). He captures people in the mirror world and replaces them with a replica who wears glasses and has no reflection. He tries to replace everybody in the town, but is sealed away by Satsuki who puts another mirror right in front of his, thus returning everything back to normal.