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Yumegaya Chris is one of the Demon Lord Knights of the Luxuria Archive. She was originally a human until going into a summoning ritual by a mysterious mage, who had given her the power equal to the Trinity Seven. She was given the goal along with three other Demon Lord Knights to bring back "Demise" to this world, as well as to eliminate Anastasia-L, the traitorous saint. Though failed to do so, she later became friends with the latter along with Lilith Asami. Currently she is one of the teachers to the reincarnated Arata Kasuga.


Chris is a cheerful person, and loves helping her other Demon Lord Knights in need, and enjoys teasing them. Similar to the other Demon Lord Knights, she takes orders very seriously. At first she can be ruthless and merciless in battle, Such as being the second assassin sent to eliminate Anna. Not even listening to her leader Patricia Caesar. Though after her defeat, the Demon Lord Knight becomes friends with her teacher. Chris sometime is sloppy and was noted to. Though her friendship with her Demon Lord Knights is very deep to the point that she didn't hold grudge against Inori even when she was being petrified to stone. She is also noted to be a kind person to others. Chris is a cooperative person, willing to help Pandora even after the terrible thing she's done to her and the other Demon Lord Knights, and would later save the possessed Anna who turned into a Demon Lord.

As a teacher she can be very strict, such us pinning the weak reincarnated Arata in the ground using strong gravity, while not even paying attention to him. She would force him do hard exercises. Although Chris would look proud at his developments over time. Chris has a hobby of polishing her nails, as well as licking lolipops in combat. Unlike the Trinity Seven whom Arata would always use his perverted attitude against them, Chris dislikes it, she shares that with her fellow Demon Lord Knights.


Chris is a young women, with an orange hair. Even though her hair is medium she doesn't tie it and keep as it is which makes it looks messy, she has a thin portion of her hair in the front.

During school as a student, her attire is the normal school attire, however unlike the other students and the other Demon Lord Knights, she doesn't dons the full uniform. She keeps her top white collared blouse untucked, which shows half of her breasts. She wears a necktie underneath. She wears a miniskirt and ties her school uniform above it, along with black loafers.

As a teacher her attire hasn't much changed, In fact she keeps it the same, as the one she wore during school.

Similar to all the other Demon Lord Knights, she can use a full armor, In her combat armor she forms two horn-shaped above her hair. She gains a heart shape on her forehead and on her waist. When she smiles she shows an uneven tooth. In this mode her weapon is a chain flailed-spiked mace.


Chris is first shown when bathing with her fellow Demon Lord Knights, when suddenly an infant reincarnated Arata shows up, along with Altana Magnus who introduce to him the four Demon Lord Knights along with their abilities. Chris remains silent the whole time. Later now being a teacher, she starts teaching Arata along with the other Demon Lord Knights. However her teachings are very strict unlike the others. At first she uses her ability to increase the gravity on Arata four times and gradually getting heavier hundred times more, all while pressuring the Demon Lord with her spiked mace, which nearly crushes him. While he barely manages to maintain himself with the heavy gravity. As days goes by he starts making progress, which Chris notices and he does set ups and push ups. Arata later become strong enough to lift weights. Making the Demon Lord Knight happy.

Later the Shadow god Harukage invade the place in order to kill Arata and the Demon Lord Knights. Pandora summons all the Demon Lord Knights. who leaves Arata to them. They escape to a far building. They converse for what to do now, and when Arata apologizes for all the trouble, Chris smiles. feeding in the mouth one of her loli-pops. She tells Arata to calm down, and that Arata now will have to work harder a little longer. When Arata informs the Demon Lord Knight how strong is he now after being measured by Pandora earlier, as he is now half-way done. All the Demon Lord Knights now will have to force him to receive a Demon's Gift, much to his confusion.

After Patricia explains the Demon's Gift and how long it takes, Chris also adds it takes thousand of years to successfully achieve it. Much to Arata depression as he can't wait that long. Chris along with the other Demon Lord Knights deduce that since Pandora is buying them time, she is indirectly telling them to awaken the Demon's Gift. Chris isn't pleased when Patricia mentions the only way to awaken a Demon's Gift. As Chris mentions it is their last resort. Yorun and Inori explain the danger which Patricia says that doing so they assimilate with the soul of the Demon Lord which the soul of the mage will be erased.

Arata protest due to the danger at first but after some encouragement from them he agrees. With Chris comment that it's weird for him to act so cool. As all the Demon Lord Knight start the technique, connecting to their Archive. with each one mentioning what's on their mind. Chris says that she wants to eat hamburgers with everyone else if they all come back in one piece. They surround Arata and create a magic circle, and use Four Heavenly Demon technique on Arata.

After learning that the technique have failed, Arata begs the Demon Lord Knight to come with them to Harukage. Chris thinks it's fine since Arata is making a nice expression too, and since they are already dead there is no harm. Eventually all of them agree and they see a severely wounded Pandora. Later the Demon Lord Knight watch in silence as Harukage agrees to converse with Arata. However in their conversation when Arata points out that Harukage doesn't wear panties since she always wears a kimono, this shocks everyone. Later Arata dashes at Harukage and dodges all her shadow attacks, Chris and Yorun are surprised by his improvement, thanks to his training with them.


Chris Thema is Tyrico from the Luxuria Archive, giving her multiple abilities. Her main magic is Puppet Art. Chris can also become "Azaria of Ryomo" taking over her body and become the Demon Knight doubling her abilities and strength. In her armor form she has the ability to manipulate Gravity at will. She can increase the gravity, and pin opponents, which immobilizes their movement, she can also increase it to the point to crash multiple buildings till it reaches the target. She also gains a chain flailed-mace spiked weapon, which she can increase it's size at will.

Demon's Gift - Being a Demon Lord Knight she has her own Demon Gift Demon Emperor Layer

  • Demon Emperor Layer - The ability to hold, by squeezing the "number" instead of the target "range" powerful of the gravity-mass operations.

Even without her armor, Chris is a master tactician, as she used the puppet technique of creating pseudo-life from surrounding stones and wood, in the form of creating a large amount of weapons and armor instead of golems.


  • Chris was the second knight sent to come and dispose of Anna after being told to that she is the traitorous saint (unknown to her that was just an order given).
  • She becomes a teacher in Royal Biblia Academy, the same school she was student years before. However this time it was in Arata's reincarnated world.
  • Chris nicknames Arata Aratacchi, possibly because she finds him cute in his child-like state.