Shout Out / Celestial Warrior Moon

• In keeping with the inclusion of modern creepypasta beasts, the author has included one hell of a Shout-Out to The Slender Man Mythos with the introduction of an Eldritch Location called The Land of Black Leaves, which is ruled by an entity known as The Black King. A similarly named alternate dimension known as The Path of Black Leaves first appeared on the slenderblog, White Elephants as Slendy's lair. More on The Path of Black Leaves here, but this story doesn't portray it quite the same as the original did.
  • Slender Man himself is often referred to as The Black King in the slenderblog, Peering In From The Outside. He's also been called that on countless proxyblogs (blogs created by his followers), such as The Morning Hunter.
  • Don't forget Usagi coming across the letter addressed to Linnie from the original Rake creepypasta and Linnie's reply from Everyman HYBRID. She also stumbles across cases files of Dr. Corenthal, also of Everyman Hybrid fame.
  • Or Luna's encounter with Zero's Bleeding Tree.
  • Followed by her encounter with a frelling Weeping Angel.
  • Another Luna example: At one point, she uses the alias 'Kagome Takahashi', which is an obvious shout out to InuYasha. Kagome is the given name of the main heroine and Takahashi is the surname of the series author, Rumiko Takahashi.
  • And Chapter 13 features yet another Slender Man reference, with The Keepers mentioning an encounter with Reach of What You Are in the Dark and Thage of Peering In From Outside.
  • Officially Slender Man made his first appearance in Chapter 20, in Germany, the place said to be his place of origin, no less.
• In an early chapter, Kuroi, Hanako, Shiroi, and Akai from the live-action series's Act Zero are police officers maintaining a police barricade. In the live-action series, they were all minor characters that were inexplicably played by the same actors as the Shitennou.
• Chapter 17 has a scene where Myddin smokes some pipe weed. Old Tobey, to be exact. Hobbits are also name-dropped.
• In Chapter 18, Usagi, while in England waiting for a ball at Buckingham Palace to start, watches TV and flips stations from Monty Python's Flying Circus to Doctor Who and finally to Blackadder before just giving up due to language barriers.
• In Chapter 21, Ami is seen reading The Lord of the Rings, which Luna and Kratos comment on being loosely based on the real events. Apparently, the Moon Kingdom and Camelot were involved, somehow, and everyone in the Fellowship perished, excepting only Aragorn and Gandalf.
• In Chapter 23: Blunder and Lightning, Zoicite unleashes a horde of creatures called Wood Trolls, which are made out of dirt and wood and powered by strange cocoons implanted into them. The description of the trolls and their behavior (trying to drag people underground) is reminiscent of the Doctor Who audiobook Day of the Troll.
• Chapter 25: An Uneasy Quiet, a college student named Jenn Brauer is attacked by a masked man working for Slenderman. He tries to abduct her in much the same fashion as Masky from Marble Hornets and even acts animalistically like your typical slenderproxy.
• Chapter 41: Echoes of the Past, Setsuna finally makes an appearance, though this time she's less of The Stoic, and takes more after The Eleventh Doctor.