Noroi no Maken ni Yamitsuki Otome is a simulation/visual novel game by Japanese company SofthouseChara. The game features 3 main characters to romance, and plenty of side characters with their own scenes as well.
The story of Noroi no Maken ni Yamitsuki Otome begins when part-time shop clerk Claire obtains a sword from Len’s magic item shop. You see, Claire has always wanted to become an adventurer. So when she sees this sword, she can’t help herself to try swinging it.
The sword is cursed however, and it doesn’t take long for the curse to activate and lash onto Claire. Releasing a dark beast and placing a curse of lust onto her body. Infecting her with darkness…
She sets out into the world together with Len, in hope to free her from the curse. Due to her curse, this becomes a somewhat lewd adventure…
