Rance 4.1: Okusuri Koujou wo Sukue!

Rance 4.1 stars an indebted Rance and Athena 2.0 as they try to solve the mystery of the sudden monster attacks from underground that has stopped Happiness Pharmaceutical, the creators of the Seirogan, from producing their main brand of healing products. The prize for fixing the situation is 150,000 gold and Rance isn't the only one aiming for it.