Help Me Find This Reincarnated Princess & Masquerade Prince Story

Hey everyone,

I’m really hoping someone here can help me. The server crash wiped out my saved list, and there’s one story that didn’t come back. I’ve been trying to remember the title, but no luck. It’s been bothering me ever since.

Here’s what I can recall (it’s a bit messy, sorry!):
•The main character is a girl who I believe was reincarnated.
•She’s arranged (or destined) to marry a prince.
•The culture in the story has very strict customs and etiquette about interacting with the opposite sex.
•She was sheltered by her parent (I think just her father), so she doesn’t really understand proper social etiquette.
•There’s a strict rule that the prince cannot marry someone who isn’t a virgin.

At some point:
•She hears from a friend about a “promiscuous gentleman” (who is actually the prince in disguise) who attends masquerade parties.
•She decides to attend one of these parties and seduce him so she won’t have to marry the prince.
•At the party, because she doesn’t know proper etiquette, she’s the only one openly eating the food — I remember this part being kind of funny.
•The prince approaches her in disguise (possibly using magic — I vaguely remember something about altered hair color or appearance).
•She ends up losing her virginity to him.

Afterward:
•A flower appears on her chest as a sign that she slept with the prince.
•The prince shows up at her house the next day.
•I think there was something unusual about his magic level (maybe it was weak or unstable?).

Other details:
•I’m not sure if it was black & white or in color.
•I believe it was ongoing but hasn’t been updated in a long time.
•I don’t clearly remember if there was explicit content, but it may have had some mature elements.

If this sounds even remotely familiar, please let me know. I’d be so grateful for any leads. Thank you all so much for taking the time to read this and help out!