The Promised Finger

Kotone, a servant girl, has long harbored feelings for her mistress, Suzuka Ojou-sama. Inspired by an old tale where a prostitute would cut off her finger to prove her love, Kotone makes a solemn promise to Suzuka: she will give her finger as a token of her devotion.

However, their bond is threatened when Suzuka is arranged to marry someone else. As the wedding approaches, Kotone must confront the depth of her feelings and the impossible choice between keeping her promise and letting Suzuka go.