Oh, we're feeling daring~

Okay, this Daikon shall deliver
Once upon a time, in a castle in a Dreadful Forest lived a Vampire Goddess.
Known for her unparalleled strength and battle prowess she ruled over countless lands, as there was no one who could oppose her, nor could anyone find their way to her heart.
Years, centuries and millennia passed and countless battles she fought. Eventually she grew bored of always winning without even breaking a sweat. The Goddess decided then to go on an adventure to seek for someone who could entertain her, battling as an equal.
Her travels took her the furthest she ever been from home. It wasn't even possible to say whether she was still in the same universe.
After eternity of wandering, the Goddess encountered a tiny village. It was an unusual sight even for her as every villager seemed to be of a different specie than the others. Eldritch abominations, vampires, humans, even animated food. All lived a slow and peaceful life, not minding the differences between them.
The peculiarity of the place was intriguing enough that the Goddess decided to stay and look for a worthy opponent among them.
Even more years had passed, and all of the strongest beings from the Village met the Goddess in battle more times than anyone could remember, but no one could even leave a single scratch on her smooth porcelain skin, or even cut a single snow-white hair off her head. With time, the spark in her crimson eyes ignited by the weirdness of the village also started fading.
Just as the Goddess started thinking about continuing her travel something unexpected happened. She was challenged to a duel by the weakest being in the entire village. A daikon.
At first the Goddess didn't think about it much. It's must've been another desperate attempt from the villagers to defeat her. The vegetable must've served as nothing else but a distraction, she thought. She accepted the challenge, nonetheless.
To her surprise, however, right as the battle started, the daikon begun changing and morphing. In a blink of an eye, a human girl was standing before her. What shook her even more, was that the girl was able to meet every single one of her attacks with an equal force.
"Who are you? How are you able to keep up with me like that?!" She exclaimed after yet another one of her attacks was deflected by the green-haired girl. "You were just a simple daikon!"
"To you, I'm nothing but a mere vegetable. Weak and forgettable. But for me, my Goddess, had become my entire world, the moment I laid my eyes on you. For years, I've been training night and day, come rain or shine, relentlessly preparing for this moment. I know you were planning to leave, bored with the lack of challenge, so here I am. I traded my soul, my daikon-self and my entire life, so I can match your strength in battle. Not to win, but to lock you in an endless battle, preventing you from abandoning me, for I cannot live in a world without you, my Goddess." The determination in her green eyes burned brighter than anything the Goddess ever seen, melting the ice that encapsulated her heart all those aeons ago.
"If you do this, then you will be bound to me forever. You shall belong to me and me only. I will be the only one who decides about your life and death. Do you understand?" The Goddess asked, giving the girl last chance to leave.
"There's nothing else I want more than to be by your side, my Goddess." The girl answered, her voice strong and unwavering.
And so the two begun their neverending dance of murderous intents and love, bringing peace to every corner of the universe.
The end.