Kagami Kan No Satsujin (Shincho Bunko Tsu 37-4 Nex)

[Machine Translation] Kagamikan" is where concubine girls live. The symmetrical old and new pavilions have 48 mirrors. A wealthy father visits the house once a year to select his daughter for a political marriage. A wealthy father visits once a year to select his daughter for a political marriage. It is the only chance for us caged birds to be free. Today is the big day.... My "dead sister" appears next to me in the mirror. The ominous letters floating on the mirror surface, the structure of the old and new buildings, the mystery of the mirror, and the reverse trick of the locked room. And the murderer appears from the mirror!

妾腹の少女たちが暮らす「鏡館」。左右対称の新旧の館に、48枚の姿見が配置されている。富豪の父は一年に一度訪れ、政略結婚のために娘を選び出す。政略結婚のために娘を選び出す。それは籠の鳥のわたしたちが自由になれる唯一の機会。今日はその大事な日なのに...。鏡に映るわたしの隣に、「死んだ姉」が現れる。鏡面に浮かぶ不吉な文字、新旧館の構造と姿見の謎、密室の逆トリック。そして殺人者は、鏡から出現した!