Characters: Jessica as the protagonist. Maybe a strict headmaster, a more serious classmate, a perverted magical creature like a succubus or a demon. The setting could be a magical academy. The story could involve a festival or event where Jessica's spells go awry.
First, I should set up the world. Maybe a magical academy where witches are studying, but there are some misfits. Jessica as the main character, a Crest Witch, which could imply she has some special status or magical ability related to her crest. The "Lewd" part suggests she's not the most virtuous character, so perhaps she's mischievous or has a playful, cheeky personality. Lewd Crest Witch Jessica and the Perverted Ero-...
Potential structure: Start with Jessica in a class or at an event, show her mischievous side, a spell goes wrong, chaos ensues, she teams up with someone to fix it, some comedic trials, and a resolution where she learns a lesson or saves the day with her unique style. Characters: Jessica as the protagonist