Frederica and Petra's Maid-san Days IV

Frederica and Petra's Maid-san Days IV (フレデリカとペトラの、メイドさんデイズIV) is a Melonbooks shop exclusive limited edition short story that came with Volume 13. It was later adapted in Shouhenshuu Volume 3.

Characters

 * Petra Leyte
 * Frederica Baumann