遠坂家ノ家計事情

Tousaka fails to pay her debt to some mafia guys so she tries to run away but ends up getting caught by their assasins. They turn her into a prostitute to pay her debts and she has to sleep with some fat old guy for a year. Later on Saber finds out about this and decides to help Rin out in exchange for both of them doing this for only half a year...