Disclaimer: All characters used in this story belong to their respectful owners.

[11/11/2017: Cleaned up the story a little bit. Dealt with misspellings, missing words or punctuation, etc. Also, changed up the titles of chapters to allude to stages in Rondo of Blood as I thought they'd be more memorable that way. Story-wise, virtually everything is the same.]

Author's Note: Hello, and welcome. Before you dive in to my story, I have a few warnings. Most of this story will take place in the Castlevania: Rondo of Blood setting than in the Touhou 6: Embodiment of Scarlet Devil setting. While genre is limited to two categories, consider this piece falling under Family, Friendship, & Adventure. One last thing: I try to make sense of it, but science hurts.

With that out of the way, I welcome you to my Castlevania & Touhou crossover story and hope you enjoy reading...


"Remi, are we good or bad?" Flandre asked her sister out of curiosity. She was walking towards the basement of the mansion they lived in. After an incident involving her losing control of herself and laying waste to a great deal of the mansion, she was sentenced to permanent imprisonment in the basement. This was going to happen with the shrine maiden, Reimu, using magical power to seal her in. Remilia, her sister, was furious at her sister's actions up to this point that she didn't even answer her question. "Are we good or bad?"

"You're both bad, but you're worse." Reimu thought to herself as she continued watching the youthful vampire's hands. Normally, she would avoid sealing anyone in isolation, but after having witnessed the destruction of the structure they currently were in and with Remilia's input, she found no better alternative. She had almost lost one of her friends because of the girl's rampage. Her friend was trying to help stop the younger vampire using her own magic, but was knocked out when she fell out of the sky onto the grass. Her fall was caused by one of Flan's attacks knocking away the broom out from under her as she was using it to fly.

"Red-white-san, are we good or bad?" Reimu felt a little irritated to be called that based on the colors of clothes she was wearing, but she did recall that she did not mention her name to anyone besides Remilia. And now the question was pointed towards her. She bit her lip when the two vampires next to her weren't looking.

"Just because someone's bad doesn't mean they can't be good. And just because someone's good doesn't mean they can't turn bad." The shrine maiden explained to avoid a direct answer.

"Oh. Okay. So we're in the middle. Thank you, red-white-san." Flan looked at Reimu with an appreciative smile. Remilia now considered the words that the human had mentioned.

"Just because someone's bad doesn't mean they can't be good..." the elder vampire puzzled in thought. They reached the basement to see that the metal door was wide open with a few scorch marks.

"Flan, go on in." the black-haired girl ordered lightly. The younger vampire looked at the room that was her own before looking back at Reimu and Remilia. "Oh, no. She's going to try to run again."

"Will black-white-san be okay? I only wanted to play with her, not break her." The apparent eight-year-old asked to be sure she didn't harm who she thought was her friend.

"Play? Break?" Reimu couldn't believe the child's idea of a fun time was causing havoc and making others dodge her powerful attacks. Black-white-san would be known as her friend, Marisa, who wore a maid outfit and a wide black hat to make herself known as a witch. "She'll be okay. Please go inside your room. This won't take long."

"Reimu?" The shrine maiden turned to the elder vampire. "I don't want to follow through with this anymore."

"Remi, I did something wrong. I'm sorry. Let red-white-san do what she was going to do. You said it'll help me, too." Remilia was shocked at the argument that she hugged her sister dearly for even considering sealing her away. After all, she was still her little sister.

"No, Flan. I'm changing my mind. You needed to go outside sometime and I wasn't prepared to let you out because I was just..." the blue-haired girl paused for a moment. Reimu could already see what she was about to say, but she knew she wouldn't admit it to her-she was deeply scared of her younger sister's power. "I'm sorry. Let's just help you control your powers more, okay?"

"But I am the shrine maiden and I'm in charge of the decision of whether to seal her or not." Reimu interrupted with a half-hearted smile. The two vampires turned to her with bewildered expressions that she merely shrugged off. "I have another idea. Though I'm not sure if it's in your best interest."

"Just spill it out." Remilia sighed as she carressed her sibling's blonde hair.

"I could make Flan drink a special tea that will give her a long sleep to face a trial that should help better her control."

"A tea? A tea, really? That is just absurd!" Remilia thought in disbelief. She raised an eyebrow and didn't notice it until Reimu acknowledged her.

"I know what you're thinking. But I've used it on others that had trouble... staying out of trouble. Now they think more before they do something." Reimu explained herself with her past experience.

"And who were these others? Humans, of course, right?"

The two sisters parted from their embrace and kept focus on the guest of the mansion.

"Actually, yes. Because it was so powerful when I first gave it to one, he went to sleep for a few months. However, when he woke up, he said he felt like he saw heaven and was enlightened. I've given it to a few youkai and it works, but I put in less of the special ingredient to make the time to sleep a lot less."

This caught Remilia's attention instantly. A few months without worrying about Flandre's behavior would be most beneficial.

"You hear that, Flan? You'll be able to control yourself better with this long sleep." Remilia explained excitedly to her sister in simpler terms.

"I have to sleep, but for how long? You said a few months for human. And less for a youkai. What about a vampire, Reimu?" the younger vampire asked with a hint of concern. Even Remilia noticed the worry in her voice.

"Reimu, don't tell me it can last up to a year!" Remilia exclaimed with a hint of sarcasm that Reimu caught on. "Tell me that it is!"

"Don't worry, Flan. I'll give you the same amount I've given to everyone else besides the first guy I gave it to." She saw the elder vampire's eagerness change to a frown and her eyes slim when she said this.

"Killjoy."

"Oh, goodie! Can we start right now? Can we?" Flan asked with excitement of getting better control of her powers with only a big sleep.

"I would, but see... I have my special ingredient back at the shrine." Reimu told with a big smile to show that she was sorry for the inconvenience. The younger vampire with wings consisting of colorful prism shards attached to two, long and appropriately bent metal bars turned eagerly to her sister.

"Remi, can we please go there?" Flan asked with her pleading scarlet-colored eyes.

"Absolutely not!" Seeing the girl's destruction outside of the mansion for a brief ten minutes was enough for Remilia to deny this request. She glared at her sister with frustration to show her decision was final. Reimu felt uncomfortable watching the two sisters have an argument and did her best to keep quiet. After a few moments of silence, Flandre gave in and looked down at the ground in defeat.

"Okay." The younger vampire in the red dress agreed before looking up towards Reimu. "Red-white-san, will you come back to give me the tea?"

"I will. Just enjoy the rest of your day-I mean night," the shrine maiden laughed at her correction since vampires were nocturnal.

"Reimu, would you bring some more of this special ingredient?" the blue-haired vampire asked in a polite manner after calming herself down. Reimu lost her smile from her earlier laugh and frowned at Remilia's request. "It's not what you're thinking. I want to try this for myself if what you say is true."

"Are you sure?" The guest couldn't believe the mistress of this mansion would want a dose for herself since Reimu saw that she was well controlled of herself.

"Yes. If it'll benefit Flan here, then it'll probably do the same for me."

The shrine maiden was still suspicious of the elder vampire's intentions, but she disguised her suspicion with a smile.

"Then I'll bring some for you too. I'm off now. Bye!" she waved as she walked towards the exit of the mansion.

"Remi, why are you going to drink it?" the eight-year-old asked out of curiosity. The tea was meant for her from what she heard. Remilia didn't have any trouble controlling herself, did she?

"It's because I'm curious. I haven't heard of such an effect." Remilia gave her sister a small smile to try to get her answer across.

"Oh. See you tomorrow, then, sister." Just as she turned around to walk back into her room, she felt her right hand grabbed.

"How would you like to go read a few books with me?" The excitement in her sister after she asked this made Remilia feel guilty for almost sealing her away for good.


Author's Note: That wraps up the first chapter! Flandre had attempted to escape again after the scarlet mist incident and sentenced to imprisonment, but is now offered an alternative-a cup of tea. Have a good one and until next time.