In a world of magic and wonder stood seven mighty kingdoms, each named after one of the seven sins, each home to a race that embodied it.
The humans lived in Lustburg, the kingdom of lust, symbolizing their boundless passion and insatiable desire.
At the peak of the royal palace—within the Tower of Babel, a grand structure of white and gold carved with ancient artistry—a young man slept soundly on a massive circular bed.
Knock. Knock. Knock.
"May I come in, Your Highness?"
The noise stirred him from his dreams. With a lazy yawn, the blonde-haired youth rubbed his blue eyes, still foggy with sleep, and sat up. He straightened his clothes enough to look presentable, then replied, "You may enter."
A woman stepped inside, moving with elegance. She wore a custom maid's uniform and curtsied with flawless grace. Though she appeared in her mid-twenties and wore no makeup, her tanned skin, sharp features, and natural beauty gave her a refined air.
But her appearance was far from ordinary. From her hair curved two horns, and her long, twitching ears framed her face. A swaying tail peeked from her outfit. She was not human—she was a cow-woman.
Her uniform, tailored to her form, was modest yet emphasized her voluptuous figure. Her presence radiated both maturity and seduction.
"Good morning, Your Highness. I hope you rested well," she greeted.
The young man—Sol—smiled faintly. "Good morning, Milia. It's unusual for the head maid to wake me. Did something happen? A message from my aunt?"
Despite his status as the kingdom's sole prince, Sol treated his attendants with respect, never putting on airs. Milia was no exception. She had raised him since infancy, his wet nurse and caretaker—someone he viewed almost like a mother, though with emotions too complex to name.
"Fufufu. Perhaps I only wished to see your cute, sleepy face," she teased.
He chuckled, unfazed by her playful charm. He had long since learned to steel himself against her teasing. Even so, resisting her allure was never easy.
Pouting, she finally relented. "Very well. Her Majesty does wish to see you. The meeting will be on the lowest floor."
At those words, Sol's expression turned serious. The lowest floor of the Tower—known as the Floor of Secrets—was reserved for matters of utmost importance.
'I wonder what this is about,' he thought, as he dressed in his princely attire and made his way down.
---
[Lowest Floor]
"The reason I've called you… is to find you a fiancée," Queen Lilith announced without preamble.
Sol blinked. "A… fiancée?"
Before him sat his aunt and guardian, Lilith Luxuria. Stunning and impossibly alluring, she was the very embodiment of lust. Her revealing gown accentuated her curves, yet the scars marking her toned body told of a life forged in battle. She was both ruler and warrior, a woman who had shaped her own destiny.
"I thought you might be betrothed to someone from a Duke's family," Sol admitted. "But I've never had anyone in mind."
"That was the plan," Lilith replied with a sigh. "Athena of House Highland was the most likely choice. But I waited until your awakening. Without an heir, our kingdom risks collapse."
The truth weighed heavily on Sol. He was the last heir. Should he fall, Lustburg would be thrown into chaos.
Lilith softened her voice. "I don't expect you to rush into marriage. Instead, I want you to gain experience. Learn how to resist temptation, how not to fall into honey traps. Always consult with Milia before making choices."
"…You're suggesting I play the libertine?" Sol asked dryly.
"Not quite. But you must grow stronger in more ways than one."
Though her reasoning unsettled him, Sol nodded. "I'll be careful. I'll rely on Milia's advice."
Relieved, Lilith smiled faintly. "Good. I've already spoken with her. Now go—don't let Setsuna scold you for missing practice."
As he turned to leave, her voice stopped him one last time.
"Remember this, Sol. Do whatever you wish, but never forget who you are… and never forget the people who love you."
"I'll remember, Aunt Lilith."
He left with those words echoing in his mind, troubled by their weight.
Lilith watched him go, her eyes filled with emotions unspoken. Alone again, she returned to her endless work, sighing at the regrets that haunted her.
---
Once, Sol had been nothing more than an ordinary boy from another world—no tragic story, no heroic sacrifice, just a life of mediocrity and regrets. He had died, or perhaps simply drifted into this world.
Now, he was Sol Dragona Luxuria, son of the Hero King who saved the world, and heir to the kingdom of Lustburg.
This… was the beginning of his tale.