The Sealed Ampoule

There once was a novice alchemist named Irene. Having recently lost her beloved mother, she decided to start her own business as a way to help take her mind off of her grief and become more independent. One day, she found a cheap secondhand dungeon for sale in an online alchemist shop called "Mercuri", and bought it immediately. However, if a deal seems too good to be true, well... The dungeon turned out to be full of strange enemies, which Irene must defeat before gathering items for her alchemy practices. Upon finally reaching the deeper depths of the dungeon, exhausted, she encounters a doll-like set of twins and the mysterious dead body of an unknown man. This is where Irene's dodgy dungeon murder mystery begins...