Hatsujou Yuusha Alexia ~Noroi no Item de Midara ni Kaihatsu Sareru Onna Yuusha no Biniku to Bakunyuu

Alexia and her party pushed on. The demon king must die.
In her party was the merchant Kristoff, who had fallen in lust with Alexia's curves. His eyes wandered over her body in search of opportunity.
Neck deep in a hopeless battle, that opportunity arrived.
Alexia didn't care about the risks of a curse. If the merchant had an item that would turn the tides of battle, she wanted it. Her transformation was visible.
The perversion blossomed, and from now on every day would be
a miasma of fight and fuck, as heroine and exploited lover.

The lewd adventure begins!!

[From DLSite English]