異世界移動誘拐宿忌憚 山道の鳥乃巣亭 初贄～女忍者ヒザクラ～

In this short story set in a fantasy world of swords and magic,
the venomous fangs of a human trafficker which runs a shady
inn sink deep into the unwitting adventuring party.

His first target... the party's Ninja Girl.

[From DLsite]