Rumia got a fair distance away from the Nuuydou's mountain, before she sprayed a barrage of multicolored danmaku into the night sky; the signal for the others to come to that location.
It did not take long for the Vampires, Sakuya and Rika to show up, and Hatate was there even sooner. However, before Sakuya arrived, a red portal opened.
Yumeko walked out, followed by Yuki and Mai.
"Lady Shinki wishes us to assist you." Yumeko said.
"Wait, how did you even know..." Rumia began.
"You think Shinki doesn't keep an eye on you; Rumia? After what happened on the moon?" Yumeko replied. "Besides, even if Shinki had not ordered me, I would have come of my own accord. Anything causing inconvenience for Lady Shinki I cannot allow."
"I dragged Mai along too!" Yuki said happily. As expected, Mai was keeping her distance from Rumia, and looked nervous, but Rumia could understand why. "After all; we're best when we're a pair!"
"But... why couldn't Shinki stop Yumemi herself? That's something that's been bothering me. How can I defeat Yumemi when she was able to extract energy from Makai... from Shinki?"
"Simple. Yumemi emerged in the one place of Makai that Shinki; and her creations; cannot enter. The very core of Makai. Where you came from. I can only imagine Yumemi was not torn apart by the energies of the core, because it knew her intention would cause pain to Shinki." Yumeko said.
Rumia laughed. "So I guess after I sort out Gensokyo; I'll have to sort out Makai too. I'm the only one who can go there, I guess."
"It is the opposite. You must not go. If you return to the Heart; you will be corrupted again. You will become even more of a threat than you were before, and lose yourself again. Makai is beyond your aid." Yumeko said.
Sakuya looked annoyed with the presence of the red maid, but spoke.
"I guess your space manipulation can work with my time manipulation to help seal off the dimensional rips Yumemi utilizes to bring magical energy to fuel her devices... and absorb our powers." Sakuya said. "That's, if your powers are strong enough to even be relevant in comparison to mine."
"Even a mutt has it's day, I must agree, maid of the vampire." Yumeko said, in a very degrading tone.
The two maids looked at each other with killing intent in their eyes. Remilia sighed.
"Sakuya, I order you to settle this later, and not let it get in the way of our current objective. Work with the undead maid."
"Undead?! Why you..." Yumeko roared, a sword appearing in her hand.
"Technically she's right Yumeko. You ARE technically a ghost possessing a doll Shinki made for you." Mai said coldly, before Yumeko just growled and the sword vanished.
"It seems lke I missed a good show~" Kaguya said, showing up at a leisurely pace.
"What is this to you? A holiday?" Hatate asked.
"I'm sorry. I'm not as fast as a Tengu or a Vampire." Kaguya said, before she pointed Kogasa at Yumeko, Yuki and Mai. "Who are these?"
"We're..." Yuki started, before Rumia interrupted to save time.
"Shinki's strongest allies. Makai is in the same danger as Gensokyo, so they came to help. Next to Shinki, these three are the strongest in Makai."
"No we're not..." Mai said quietly. "There's..."
"Quiet Mai. It's nice to be complimented." Yuki said.
"Not when it's wrong."
The group followed Rumia, as she followed the directions given by Kanakuma. Sure enough, after following the directions, they group found a clearing, and between the mountains, they could make out the obvious outfits and shapes of Yumemi and Chiyuri, who seemed to be doing something to a reasonably sized device, about the size of a human. The device had the same magisterial mark as Yumemi's weapon.
"Oi! I'm back!" Rika shouted down at them. "I never said I wouldn't trash ya stuff after I got what I wanted from ya!"
"Rika.. for a mad scientist you sure can be dumb." Rumia said, as Yumemi and Chiyuri turned, and flew up to meet the group.
"My my, we've been discovered." Yumemi said. "And it's the Darkness Youkai at the helm, despite my previous request. I highly doubt you are simply passing through; there is nothing in these mountains; or beyond them."
"It's obvious they're here to stop us Yumemi. We should just beat em up and scare them off!" Chiyuri said, pulling out her weapon.
"Calm down Chiyuri. I said before, I would wish this not to come to violence." Yumemi said calmly, before she looked at Rumia with determination in her eyes. "Although I believe we should show our visitors what they would be up against."
Yumemi reached out her arms, in the same fashion Rumia usually did, and hundreds of pointpoints of light formed around her. Shen her hands were visible it was clear she had a device she was using earlier in both hands.
"Those are all... it can't be..." Kaguya said.
"Dimensional Distortions... hundreds of them!" Sakuya commented.
"What does that mean?!" Rumia shouted.
"It means she has hundreds more of those devices she used earlier." Kaguya replied, before she started to glow. "We have to stop them coming through; or else there is no way we can win! The power of just one of those devices was immense!"
Yumeko closed her eyes, and changed into her 'outline' form, while Sakuya held out her pocketwatch. The pinpoints of light flickered, and then stopped getting brighter, although they did not dim.
"Ugh... it feels like I'm holding back a massive torrent of water..." Kaguya said. "It's like a dam about to burst... not sure how long we can hold this."
Yumemi returned to her normal pose, and looked surprised.
"Oh my, you can stop me opening dimensional rifts to summon more of my Magic Crosses. Regardless, I still have access to two of them." Yumemi said calmly.
"Spear the Gungir!" Remilia shouted, hurling a large spear of scarlet energy, a blood-magic spear which bore the power of the legendary spear, Gungir itself, one of Remilia's possessions.
Yumemi calmly moved her right hand in the way of the spear, and it turned into blue particles just before reaching her, which were sucked into the small device.
"Sis? What just happened?"
"... She just absorbed one of my strongest attacks like it was nothing... and it was an attack that also carried divine power..." Remilia said.
"Then how about Deamonic power, Mai!" Yuki said, as flames began to dance around the pair.
"It's been a while since we have used this one." Mai commented, forming a huge lance of ice in front of her, which Yuki's flames began to cover. "Although I think the physical aspect is more important.
"Hellfire Javilin!" the pair called as Yuki launched the spear, which left a beautiful, glittering trail of embers, mist and small fragments of ice.
"A huge chunk of ice like that might do it! It's formed by magic, but it's a physical thing!" Hatate commented.
Yumemi smirked, as the device in her right hand flared up with the white energy, and took the shape of a cross again, before she moved to the side, and sliced the ice-lance in two, the fire being absorbed into the device, and the ice shattering on impact with the energy being emitted, before the white cross-prongs vanished.
"Ugh..." Yuki grunted.
"Yuki... we learnt something important there." Mai said.
"What?" Yuki asked the ice demon.
"Isn't it obvious? She dodged the ice! She didn't absorb it! Honestly, you Makai idiots are as dumb as youkai!" Rika said. "It means she can only absorb attacks that are actually made of magical energy."
"Except the ice shattered with contact with the device's energy. We don't even know what that stuff it lets out is capable of!" Rumia said.
"I'm not sure what you hope to achieve." Yumemi said calmly. "However, I shall warn you one last time. I wish to avoid violence. If you continue to disrespect my aims, my morals, and my people's survival, however, I will be forced to turn to aggression."
"Yumemi; we're not going to back down just by your intimidation tactics. You told me about the Watasukis and Makai to try and scare me into thinking I couldn't win. You demonsrated your weapon against Eirin's cage, instead of talking Eirin into letting Chiyuri free, to intimidate us. You tried to summon all of those devices, despite you acting like you only need two, to scare us. Even now, you're acting calm and collected, as if nothing can phase you, as an act of intimidation." Rumia said.
"Heh." Hatate said.
"Maybe you have some smart moments after all." Rika said.
"The charisma of the Scarlet Devil is too much to be wavered by such simple attempts at intimidation; scientist." Remilia said, before she looked at Flandre, and smirked.
"Besides, we'll see how those toys of yours fare when my sister lays her hands on them."
"Sis?" Flandre asked, curiously.
"Flandre; I'm giving you permission to break her toys."
Flandre looked in disbelief at what she was being asked to do. Then she broke into a grin.
"This will be fun~"