Location: Naruse Residence - Living Room
Time: The Night After the Encounter
Raiden sat on the sofa, inspecting the Hijirigasaka Academy uniform he was forced to wear.
"This fabric is tight," Raiden complained, ripping the shoulder seam slightly as he flexed. "And it smells like starch. Basara, why do I have to go to school? I'm a Dragon millions of years old."
"Because you're technically living here as a 'cousin' now," Basara Toujou sighed, rubbing his temples. "And in Japan, minors go to school. Even if they are world-eating dragons."
Maria Naruse skipped into the room, holding a strange book and a bottle of medicinal wine.
"Forget school for a moment! We have a bigger issue!"
She pointed at Mio Naruse, who was sitting nervously in an armchair.
"Mio-sama needs to control the power of the former Demon Lord Wilbert inherited within her. And Raiden-san... well, you are a loose cannon. We need a binding contract!"
"A contract?" Raiden raised an eyebrow.
"A Master-Servant Pact!" Maria declared, her eyes gleaming with succubus mischief. "By binding your souls, Mio-sama becomes the Master, and you become the Servant! It will prevent you from betraying us, and your dragon energy will help stabilize her power!"
Raiden laughed. It was a deep, rumbling sound that vibrated the coffee table.
"Me? A servant? To a little girl?"
He leaned forward, his eyes glowing violet.
"I ate the God of Lightning for breakfast yesterday. Do you really think a piece of paper can leash me?"
Mio stood up, trying to muster her courage. "I... I need to trust you, Raiden! If you are really going to protect me, prove it! Accept the pact!"
Raiden looked at Mio. He sniffed the air. Her fear was mixed with determination.
"Fine," Raiden smirked. "I'm bored. Let's see if your magic tastes good."
Location: Basement Ritual Room
Maria drew a complex magic circle on the floor. The room was filled with incense that smelled suspiciously like aphrodisiacs.
"Okay!" Maria instructed. "Mio-sama, Raiden-san. Step into the circle. You need to form a blood seal, then kiss to finalize the soul link."
"K-Kiss?!" Mio turned beet red. "You didn't say that part!"
"It's essential for the mana transfer!" Maria winked.
Raiden stepped into the circle, crossing his arms. "Get on with it. I have a midnight snack to catch."
Mio stepped in. She bit her thumb, drawing a drop of blood.
Raiden did the same, biting his own thumb (which required significant effort given his durability).
They pressed their thumbs together.
"I, Mio Naruse, heir to Wilbert, command thee..."
Magic light flared. Chains of crimson energy erupted from the floor, wrapping around Raiden's limbs.
"Success!" Maria cheered. "The chains of dominance are—"
CRACK.
The chains didn't tighten. They shattered.
The crimson light turned black. The magic circle began to spin in reverse.
[System Alert]
[Foreign Soul Intrusion Detected.]
[Analyzing Soul Weight...]
[Error: Target is a Heavenly Dragon. Soul Weight Exceeds Demon Lord Class.]
[Reversing Polarity.]
"What's happening?!" Mio screamed as the chains whipped around and bind her instead.
"The pact is reversing!" Basara shouted, trying to step in, but a barrier knocked him back. "Raiden's soul is too strong! He's dominating the ritual!"
Raiden stood in the center of the storm. He felt something... new.
The magic of the Testament world was different. It wasn't just mana. It was Desire. It was raw emotion.
In the DxD world, he had consumed the Lucifer Fragment (Pride) and mastered Gluttony.
But here, bathing in the succubus magic, a dormant seed within him cracked open. Perhaps it was the influence of the Asmodeus energy he had brushed against in the past, or simply the nature of a Dragon to hoard.
[System Evolution]
[Catalyst: Master-Servant Reversal + Succubus Magic]
[Acquiring New Unique Skill...]
A pulse of pink and gold energy exploded from Raiden's chest, mixing with his purple void aura.
[Skill Acquired: King of Lust (Asmodeus)]
Raiden's eyes changed. The vertical slits didn't disappear, but a ring of gold formed around his pupils.
He didn't feel hungry for food.
He felt a burning, electric hunger for sensation. For domination.
"Oh?" Raiden looked at his hands. "This flavor... it's not meat. It's heat."
The light faded.
Mio collapsed, panting heavily. The magical pact had settled, but the dynamic was inverted. A crest appeared on Mio's collarbone - the mark of the Servant.
Raiden stood tall, the new gold aura shimmering around him like a heat haze.
"Mio-sama!" Maria rushed to her. "Are you okay?!"
Mio looked up at Raiden. Her face was flushed, her body trembling not just from fear, but from a strange, overwhelming pleasure coursing through the pact link.
"I... I feel... hot..."
Raiden walked over. He crouched down and lifted Mio's chin.
His touch sent a jolt of electricity through her.
"You tried to chain a Dragon," Raiden whispered. His voice had a new quality - a magnetic charm that made it hard to look away. "But you only woke up a different beast."
[Unique Skill: Lust]
[Effect 1: Charm of the Sovereign (Passive high-level attraction)]
[Effect 2: Libido Conversion (Can convert sexual energy/desire into Mana/Stamina)]
[Effect 3: Domination (Absolute command over those under contract)]
Raiden smirked.
"Gluttony fills the void. Lust ignites the spirit. Interesting."
He looked at Maria.
"You. Succubus. This was your idea."
Maria gulped, blushing furiously as the Charm effect hit her. "I... uh... yes?"
"It failed," Raiden stood up. "I am not the servant. I am the Master. And you two..."
He pointed at the girls.
"...are now part of my hoard."
Location: Hijirigasaka Academy - Roof
Time: The Next Day (Lunch Break)
Raiden sat on a bench. He wasn't eating his usual mountain of food. He was holding an apple.
He took a bite.
"It tastes better," Raiden noted. "My senses are sharper."
Mio and Maria sat next to him. They looked exhausted. The Curse of the Pact meant that if they were too far from Raiden, they would suffer withdrawal (and other sensations).
"This is humiliating," Mio whispered, hiding her face. "I'm supposed to be the Demon Lord's daughter..."
"Stop complaining," Raiden said. "Basara is handling the Hero politics. You just need to sit there and look pretty."
Suddenly, the door to the roof burst open.
A group of students surrounded them. But their eyes were vacant.
"Kill... the target..."
"Mind control?" Raiden sighed. "How cliché."
From behind the water tower, a man in a white suit emerged.
Takigawa Yahiro (Lars).
"Well, well," Takigawa smiled. "I heard a monster transferred in. You don't look like much."
Raiden looked at Takigawa.
With Gluttony, he saw a tasty demon.
With Lust, he saw... intent. He could taste Takigawa's desire for battle and deception.
"You want to fight," Raiden stood up.
Takigawa froze. He felt it.
It wasn't just killing intent.
It was an aura of pure charisma and dominance. It made Takigawa's demon instincts scream 'Submit'.
"What did you do?" Takigawa stepped back, sweating. "That's not normal Haki."
Raiden walked forward. He didn't raise his fist.
He simply released the King of Lust.
"Kneel."
The command wasn't loud. But it slammed into the minds of the controlled students and Takigawa like a hammer.
The students collapsed instantly, unconscious.
Takigawa fell to one knee, struggling to keep his head up.
"What... the hell... is this skill?!" Takigawa gritted his teeth.
Raiden stopped in front of him.
"I have two sins now, Demon," Raiden smiled, his eyes flashing gold and purple.
"I can eat your body with Gluttony."
"Or I can break your mind with Lust."
He tapped Takigawa's forehead.
"Tell your boss Zolgia... the new King is in town. And he wants entertainment."
Later that evening, in the shower.
Raiden looked at his chest in the mirror.
On the right side, the tattoo of the Black Maw (Gluttony).
On the left side, a new tattoo of a Golden Heart wrapped in Thorns (Lust).
"Hunger and Desire," Raiden mused, turning off the water.
He stepped out. Maria was waiting with a towel, her face bright red but unable to look away.
"M-Master Raiden... your back..."
"What about it?"
"The dragon wings... they're visible. But they look different."
Raiden looked over his shoulder.
The spectral wings were no longer just black void. They pulsed with a rhythmic, hypnotic pink light.
"Great," Raiden grunted, taking the towel. "Now I'm a disco dragon."
He looked at Maria.
"I'm hungry. Make dinner. And after that..."
His golden eyes narrowed.
"...we test the limits of this new skill. I need to know if I can eat 'pleasure' the same way I eat magic."