Adult PC Game: Charlotte's Trip -Majutsushi Minarai Char no Cosplay Sekuhara Douchuu- Ver.1.12 (eng) by oumishouan Archive

You play as Charlotte, a magician's apprentice.
After the death of her father, the main character's only family member, her mother, falls ill, and her magic teacher suggests that they explore the monster-infested territories in search of materials to make a cure for her mother.
This "journey" will be full of naughty encounters that will decide your future.