Icon-samurai.pngThis article is about a/an villain in Power Rangers Samurai and Power Rangers Super Samurai.Icon-prss.png

"I was never truly a Nighlok. My heart remained human."
―Dayu's final words before her death.[src]

Dayu (formerly known as Dahlia) was a human/Nighlok and one of Master Xandred's two followers, working to bring the Netherworld onto Earth by flooding the Sanzu River. Dayu had many powers and abilities such as mouth blasts, super speed, basic teleportation as it was seen when she was battling Mia. She is also capable of moving from Earth to the Netherworld.

Character History

Dayu's monster form.

Prior to her service to Xandred, Dayu was once a woman named Dahlia, recently married to the man known as Deker. On the night of their wedding the two presented each other with gifts: a katana for Deker and a decorated guitar for Dahlia. Sometime in the night a fire broke out in their home while Dahlia and presumably Deker were asleep, when Dahlia woke to find their bedroom burning, Deker was nowhere to be found. The couple managed to escape the house, but Deker was severely injured.

In a moment of desperation she called out for help and the "King of the Nighloks" (later revealed to be Serrator) appeared before her. Serrator agreed to save Deker, but at the cost of Dahlia's humanity. She agreed to his terms and was tricked soon thereafter, Serrator turned them both into Nighloks and wiped Deker of his memory. Upon Deker's revival and immediate transformation into his Nighlok half, he vanished, leaving Dahlia behind. She was then transformed into her current Nighlok form known as Dayu.Tvicon.png TV STORY-Broken Dreams Some unknown amount of time later, Dayu was approached by Master Xandred, who was drawn to the sad music Dayu played on her transformed harmonium, as it soothed his uncontrollable rage and painful headaches. He offered her a place as his minion, which she accepted.Tvicon.png TV STORY-The Master Returns

Rofer and Dayu.

As a half-Nighlok, Dayu served as one of the two generals working at Xandred's side to fight against the Samurai Rangers, yet she is embittered by her time in the Netherworld. Dayu still clings to the memory of her mortal life and her relationship with Deker, despite that he has no memory of their life together. She primarily regrets "cursing" him as a Nighlok with the unquenchable desire for the "ultimate duel".Tvicon.png TV STORY-Boxed In On one occasion, she attempted to use the tears of newlywed brides to flood the Sanzu River and recreate her wedding dress, only to be foiled by the Samurai Rangers (Mia and Emily in particular).

She is skilled in battle, lasting long enough against the Rangers until Jayden prepared to attack her with the Fire Smasher. It was there that she was rescued and forced to retreat by Deker, who intervened in the battle upon finding the opponent Uramasa (his Katana) was seeking.Tvicon.png TV STORY-There Go the Brides She thanks him for saving her life and inquires why he wishes to fight the Red Ranger, to which he answers he is "cursed to satisfy this urge" for the ultimate duel and nothing else was important, not even his past life.Tvicon.png TV STORY-The Blue and the Gold

When visiting The Tengen Gate, Mia and Kevin were told of the old folktale about a woman who made a deal with the King of the Nighloks to save her beloved and was tricked, foreshadowing the fate of Dayu and Deker.Tvicon.png TV STORY-The Tengen Gate When Xandred damaged her Harmonium, Dayu fled the ship, intending not to return. She attacked a guitarist performing for the public, intending to use him to repair her weapon. This incites a battle between her and Mia, who happened to be passing by when she attacked. Xandred sends Rhinosnorus after Dayu, the monster blasts them with a sleeping spell and the two are sent into the dream world where Dayu's past life is revealed to the Pink Samurai Ranger.Tvicon.png TV STORY-Broken Dreams

Dayu later finds the Furry Wart that was cast out by Master Xandred. She now has someone to talk to at last. Dayu tells the Furry Wart that Master Xandred had broken her harmonium and wants revenge for it.Tvicon.png TV STORY-Trading Places

Deker, Serrator and Dayu

Dayu thought Deker was dead. She went to the spot, where she thought he had perished, only to find his broken sword. There, she encountered Serrator once again. She was still mad at Serrator, after what he did to her and Deker in the past. Serrator offered to fix her Harmonium, and locate Deker, if she agreed to serve him, which she did. She later finds Deker in the woods. Deker revealed to her that his Ultimate Duel didn't free him from his curse, due to his sword being broken. Dayu convinced him to join Serrator, in exchange for fixing his sword, which he did. When they joined forces with Serrator, he gave Dayu a dagger as a temporary replacement and Deker a Mooger's sword as a temporary replacement too.

Later, Dayu returned to Master Xandred's side, after he fixes her Harmonium. Before this happened, she was betrayed and attacked by Serrator, who revealed that she was merely a pawn in his own master plan.

Some time after Serrator betrayed her, Dayu tried to convince Deker to join with her and Master Xandred, having completely lost all trust in Serrator. Her fears are further convinced, when she saw Serrator give Deker back his sword, while she silently hoped that Deker won't allow Serrator to use him as a pawn. When Serrator was locating the weakest point between Earth and the Netherworld, Dayu followed him there. When Deker arrived to claim Uramasa, Dayu watched as Deker betrayed Serrator, in a mix of relief and concern. Later, after Serrator's destruction, Dayu went to Deker's side, offering to help him find a way to break his curse. After he denied her assistance, she returned to Octoroo on the Netherworld ship.

Dayu's death

Later when, Deker and Jayden were fighting each other, Dayu sensed that Deker and Jayden are fighting each other in an epic duel. During nighttime, Dayu tried to stop Deker from continuing the duel because she doesn't want to lose Deker again. Since Deker refused and stated that he wants to be freed from his curse, Dayu reluctantly let Deker continue the duel. When Deker died, Dayu planned to spread misery in the human world and cast aside all humanity that was left within her. She fought with Mia who broke her harmonium causing Master Xandred to return. After Xandred returned, he thanked Dayu for reviving him, but she stated that she played the harmonium for Deker. She further explained that she wasn't really a nighlok due to her heart remaining human. Reminded of that, Xandred absorbed Dayu to gain immunity from drying out and the Sealing Symbol. If Dayu was still alive in some form following her absorption, then she too was killed when the Samurai Rangers defeated Xandred, possibly allowing her to be reunited with Deker in the afterlife.


Self-confident, callous, and arrogant, Dayu keeps mostly to herself, interacting with Octoroo and Xandred only when spoken to or during other needed times. She is also quite antagonistic to others, often insulting the Nighlok that shows up on the ship. Xandred and Deker are the only ones she shows any respect for. However, underneath all her arrogance and scorn is actually a sad and tormented woman who lost everything she loved, and would do anything to get some semblance of that life back. She holds a desperate attachment to her harmonium, as it is the only reminder of the happiness she once had. Her time as a Nighlok has also made her quite bitter, attacking Mia even after she showed her compassion for her plight. She also holds a great deal of guilt over Deker, feeling responsible for his cursed half-Nighlok existence, and wants him to be free of it.

Powers and Abilities


  • Steam Breath-Dayu can fire white steam from her mouth to damage her enemies severely.
  • Mouth Slime Balls: Dayu can also fire dark blue slime balls from her mouth.
  • Netherworld Transportation-Dayu can move from earth to the Netherworld and vice versa by vanishing inside of the gaps between our world and the Nighlok world.
  • Teleportation: When not headed for the Netherworld, Dayu can teleport to other locations.
  • Super Jump: Dayu can jump at superhuman heights.
  • Detection: Dayu was able to detect the time when Jayden and Deker are having their final duel.
  • Human Form: In "Evil Reborn," Dayu is shown to still be able to change back to her human form as seen when she tried to convince Deker to stop the duel between him and Jayden.


  • Strength-Dayu may not be the strongest Nighlok but she was easily able to overpower Mia in a duel.
  • Durability-She easily shrugged off multiple hits from Mia's Spin Sword.
  • Longevity: After becoming a Nighlok, it is possible Dayu has been alive for many centuries.
  • Dashing-Dayu can dash around at high speed. She usually uses this in conjunction with her harmonium.


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  • Harmonium-Dayu's guitar, the "Harmonium" (transfigured into a shamisen) serves as her primary weapon.
    • Blade Deployment-Dayu can remove the head of the weapon to remove a shirt stabbing sword to use in combat.
      • Blade Rush-Dayu's strongest attack where she would remove the blade in her Harmonium and then rush at her enemies, striking them multiple times before skidding to a stop and researching her weapon. The enemies would then burst and collapse. This could take out five Samurai Rangers since she never used this around Antonio.
      • Energy Empowerment: Dayu can charge up her blade with light purple energy and slash at full force.
      • Flame Empowerment: Dayu can also charge up her blade with purple flame and slash at full force.
    • Soothing Music-According to Master Xandred, the "Harmonium" soothes him, as its music is a song of despair. Only Dayu's song, while performed and played using this instrument, can soothe Master Xandred and his chronic headaches.
  • Dagger-After agreeing to help Serrator with his schemes, he gave her a special dagger-like weapon to use while he took her damaged instrument. This was discarded once she got back her Harmonium.
    • Energy Empowerment-Dayu can charge up her dagger with purple energy to do serious damage to her enemies, as shown when she and Deker destroyed Skarf.

Behind the Scenes


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  • Dayu is one of the many villains, male or female, who were once a human before becoming a monster.
  • Dayu shares the same name as her Sentai Counterpart.
  • A harmonium is not a stringed instrument, but a free-standing keyboard instrument, similar to that of an organ.
    • This could be a goof on Dayu's (or a writer's) part, or perhaps it is just her nickname for her shamisen.


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See Also


Power nav icon.png Icon-samurai.png Power Rangers Samurai & Power Rangers Super Samurai Icon-prss.png
Jayden Shiba - Kevin - Mia Watanabe - Mike - Emily - Antonio Garcia - Lauren Shiba
Samuraizer - Samurai Morpher - Black Box - Power Discs - Spin Sword - Mega Blade - Fire Smasher - Hydro Bow - Sky Fan - Forest Spear - Earth Slicer - Barracuda Blade - Shark Sword - Bullzooka - Mega Mode - Super Mode - Super Mega Mode - Shark Attack Mode - Mega Shark Mode - Shogun Mode - Samurai SUV
Mentor Ji - Farkas Bulkmeier - Spike Skullovitch - Eugene Skullovitch - Cody - Scott Truman
Zords and Megazords
Lion FoldingZord - Dragon FoldingZord - Turtle FoldingZord - Bear FoldingZord - Ape FoldingZord - BeetleZord - SwordishZord - TigerZord - OctoZord - Samurai ClawZord - LightZord - SharkZord - BullZord
Samurai Megazord - Beetle Blaster Megazord - Swordfish Fencer Megazord - Tiger Drill Megazord - Samurai Battlewing - Battlewing Megazord - Octo Spear Megazord - Claw Battlezord - Claw Armor Megazord - Samurai Battle Cannon - Light Megazord - Samurai Shark Megazord - Bull Megazord - Samurai Gigazord - Samurai Lightzord - Samurai Shark Gigazord
Master Xandred - Octoroo - Serrator - General Gut - Moogers - Spitfangs - Furry Warts - Papyrox
Deker - Dayu
Venjix Computer Network: Professor Cog - Grinders
Tooya - Scorpionic - Rofer - Doubletone - Dreadhead - Negatron - Yamiror - Madimot - Desperaino - Robtish - Vulpes - Steeleto - Antberry - Splitface - Arachnitor - Rhinosnorus - Sharkjaw - Sergeant Tread
Armadeevil - Switchbeast - Eyescar - Crustor - Skarf - Duplicator - Grinataur - Epoxar - Maldan - Trickster - Pestilox - Fiera - Gigertox - Gred