"Amazing! I, Kaiba, acknowledge you as the third-best. But the third-best will never defeat me. It's my turn! I sacrifice my three Blue-Eyes White Dragons to summon Obelisk the Tormentor."

As Kaiba's voice echoed, the sky immediately darkened. Soon after, a colossal figure emerged behind him. At that moment, one of the Three Egyptian Gods, Obelisk the Tormentor, established itself on the field.

"Magnificent!"

The mere presence of this being made my back sweat.

"Come forth! Obelisk the Tormentor. Finish him!"

The majestic Obelisk swung its fist, charging towards me.

The huge fist struck my body hard, and immediately after, the space shattered into thousands of pieces, revealing a rift that I was sucked into.

"Hmph!"

Kaiba looked at the rift where I disappeared and snorted coldly.

...

Dimensional Gap

I felt dizzy and disoriented.

Thud!

I landed somewhere unknown. Slowly getting up, I wondered, "Where am I?"

Looking around, I realized I was surrounded by a strange mix of colors that seemed to connect and disconnect.

Before I could observe more, a wave of nausea hit me, due to gazing at these hundreds of peculiar colors. Unfortunately, I couldn't hold back the vomit.

"HEY! KID! DID YOU JUST VOMIT ON A DRAGON? YOU'VE GOT NERVE! EVEN THE GODS DIDN'T DARE SPEAK TO ME, BUT YOU VOMITED ON ME?"

A deep voice sounded.

The sudden voice almost made me pass out while vomiting.

It would have been a tragic scene.

"What, a… dragon?"

"KID! I DON'T KNOW WHY YOU'RE HERE! BUT YOU VOMITED ON ME! By the way, how did you get in here? If I hadn't been passing by, you would have been torn apart by the rift."

The voice continued in an annoyed tone, but at the end of its speech, did it suddenly calm down? Even showing curiosity?

I was embarrassed. I had vomited on someone, and not just someone 'ordinary' but on a dragon.

I remembered I was having sex with my girlfriend who was cosplaying as Dark Magician Girl. As I was about to release my white load inside my girlfriend, I mysteriously found myself isekai'd into the world of Yu-Gi-Oh.

As soon as I realized I had been isekai'd, I decided to become the world's greatest duelist.

After obtaining a Duel Disk and assembling a deck I deemed ideal, I challenged and defeated dozens of duelists one by one.

One day, I was fucking Mai Valentine. Looking out the window, I saw Kaiba passing by in a helicopter. Without much thought, I went after him for a duel.

To my surprise, he agreed to duel me.

The duel began, and just when I finally neutralized his monsters, he summoned that damn Egyptian God to overpower me.

Despite being dazed, I asked, "Sorry, but who are you?"

"You don't know who I am?"

"No…"

"Boy, remember well, my name is Great Red. I am the True Red Dragon Emperor God."

When I heard the name, I almost thought I had heard it wrong.

"Huh? Can you repeat that, please?"

"Great Red."

"... Can you say it again?"

...

"DAMN KID! WILL YOU STOP? I'VE ALREADY TOLD YOU, MY NAME IS GREAT RED, THE TRUE RED DRAGON EMPEROR GOD!"

Great Red, who had lived for who knows how many years, spoke angrily. It was the first time a human had managed to infuriate him. Always acting high and unreachable, he had lost his patience with a human.

If it weren't for me being the first he encountered since he was expelled from the Infinite Dragon Kingdom, and his curiosity to talk to someone, he probably would have already attacked me with his dragon breath.

"NOOOOOOOOOOOOOOOOOO!"

I screamed after confirming I hadn't heard wrong.

"Hey, hey, hey, kid, what's the problem? What's happening to you? Be quiet."

"I got isekai'd into High School DxD? What the hell!"

"If any God is listening, take me back to the world of Yu-Gi-Oh, I promise to be a good boy. I won't sleep with the heroines anymore. I'll even return the panties I took from Téa. I might even become a great friend of Yugi and help him with his destiny."

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I ran in circles, worried.

As someone who watched thousands of anime, I knew very well that in this world there were extremely dangerous beings. The world of Yu-Gi-Oh was dangerous in itself, but still manageable.

But the world of DxD? Pft! This world is a complete mess!

Unless you have a Longinus, don't even think about joining the battles of this world.

"How am I, a mere duelist who slept around, going to survive here?" I murmured.

As I pondered, Great Red said, "Boy, it's time for you to go back. The rifts are starting to affect you. One wrong step and you'll be killed."

Go back? How can I go back?

I was filled with questions. I'm only here because of the slap I received from Obelisk. I doubt if Great Red slaps me I can return to the world I was in. It's more likely I'd die.

"Kid, you... don't tell me you don't know how to get back?" Great Red asked, his voice carrying an odd tone that I hadn't noticed before.

I nodded, unsure if he could see me.

"HAHAHAHAHAAHAHAHAH!"

Great Red's laughter echoed through the Dimensional Gap, making the entire space tremble.

"You weren't brought here by force, were you?"

I nodded again, followed by Great Red's laughter.

My expression at that moment was gloomy.

You damn lizard! Just wait...

At that moment.

"Hey, hey, hey? How am I floating?"

I looked at myself, surprised to be levitating. I was upside down while floating.

"Kid, don't yell. I'm going to send you back. But before you go, tell me your name."

"My name?"

I didn't have to think for long before a smile formed on my face.

"I'm Yami Yugi. Remember my name, you old dragon."

Damn! I screwed up. How could I let slip my thoughts about this dragon?

Fortunately, what I feared did not happen, and Great Red just laughed when he heard me call him an old dragon.

"Old Dragon? Interesting, interesting... hahaha!"

Once again, the entire Dimensional Gap trembled under his laughter. This was the first time someone had spoken to him as an equal. Everyone he had met, except Ophis, trembled at his sight and begged for mercy.

"Kid, you are interesting. I'll give you something."

I saw Great Red chant a spell, and a series of enchantments covered my body. Soon, red smoke began to emanate from me.

"Kid, the human body is fragile and has a short life. I will reshape you with my flesh.

This will kind of make you my son. Hahahaha! Just thinking about it, I can't control my laughter.

Cough, cough!

I mean, this body won't have many advantages, just a longer lifespan. Plus some good talent, and dragon powers, I guess. Well, it doesn't matter. You amused me, so it's only fair to reward you. Anyway, see you around."

After saying this, I heard his loud laughter one last time before being thrown out of the Dimensional Gap through a rift he opened himself.

"Damn! This cursed dragon! Why not just teleport me carefully? This hurts, hurts a lot!"

As my body remodeled, I didn't realize I was falling from the sky. I felt every part of me, from flesh to soul, tremble, and soon after, I passed out from the pain.

Thud~

I fell into a lake, and my blood quickly turned all the water red.

"Mom, the lake water is red."

A child's voice rang clearly in the quiet night. Soon after, two figures appeared on the lake's shore.

"Mom, look, there's someone floating there."

Akeno pointed in a direction, speaking to Shuri.

"Akeno, mom sees."

Shuri looked towards where Akeno was pointing.

Quickly, they pulled me out of the water.

"Mom, I'm scared."

Akeno, seeing my body covered in blood, hid behind Shuri, peering at me cautiously.

"It's okay, Akeno, don't be afraid. Onii-san is just injured."

Shuri comforted Akeno and then used magic to take me to the temple where they lived in hiding.

...

A week later

I slowly opened my eyes and saw a pair of bright eyes watching me.

"Onii-san, you woke up."

Akeno spoke happily.

"Where... where am I?" I asked.

"Onii-san, this is Akeno's house." Akeno, with her large, bright eyes, looked at me and said.

I nodded. "A- Akeno, right?"

"Hey, how does nii-san know my name is Akeno?"

Akeno tilted her head, confused.

"Didn't you tell me?"

I said with an understanding smile. Akeno was very different from her adult version. As a child, she was innocent and cute. But after everything that happened to her... she changed.

I slowly got up and took Akeno, placing her beside me.

"Akeno, my name is Yami Yugi. Nice to meet you."

I put my hand on Akeno's head without realizing and began to stroke her.

Akeno blushed as she felt her head being caressed.

"Yami Yugi? Your name is strange... hehe!"

Akeno looked at me with a smile.

"Yes... it is indeed strange."

I continued stroking Akeno's head, finding it very comforting. I only stopped stroking when I noticed her beautiful red eyes threatening to shed tears.

Realizing this, I removed my hand. Shortly after, Akeno ran outside.

"Mom! Onii-san woke up!"

A little while later, a figure entered, followed by little Akeno.

"Ah! You woke up. I'm Shuri Himejima. Akeno told me your name is Yami Yugi."

Shuri knelt beside me, examining me, while Akeno mimicked her movements.

"Yes."

I nodded slightly.

"Your body is still not recovered, please rest a bit more."

After saying this, Shuri stood up with Akeno and left the room. Akeno looked at me for a few moments and then followed.

...

As time passed, I had been living with Akeno's family for a year.

When a new year arrived, my body had finally been completely remodeled.

I grew close to Baraqiel since he was very busy with work, and I was the one who took care of his wife and daughter. Of course, I did nothing perverted, I was just a child.

Akeno rarely had the chance to see her father, so she was always glued to me. I didn't mind, and even shared stories about my past life.

Our relationship is incredibly good.

Shuri didn't seem to mind much about it. And Baraqiel was the same.

One day after my body was completely remodeled, I decided it was time to leave. This left Akeno desperate. She wouldn't accept me leaving at all.

Seeing her cry so much, I finally gave in to Shuri's request and gave up talking about leaving. It's not too bad living here.

"Why don't you want me to leave, Akeno?" I asked, stroking her head. I always liked to ask this to see her reaction.

"You can't go! If you go, I, I… won't talk to you anymore!"

Seeing that she was about to cry again, I quickly told her a joke.

"One day, an elephant and an ant decided to have a race. The elephant was confident, after all, he was huge and strong. But when the race started, the ant disappeared quickly, leaving the elephant behind. The elephant was so surprised that he asked the ant how she had managed to win so easily. The ant replied: Well, I just had to get in my car."

"…"

"Onii-san... you're really bad at telling jokes."

Akeno smiled and closed her eyes to sleep.

Finally, I managed to get Akeno to sleep.

I left the house and began my own training.

"Yami..." Baraqiel appeared, floating in front of me, with a serious expression.

"How long will you stay this time?"

I stopped what I was doing and asked.

"I can't stay long, I'm leaving soon."

Baraqiel seemed a bit disappointed. He really wanted to spend more time with his family, but due to some events in the underworld, he couldn't.

"Baraqiel... I've decided that I'm going to leave."

Baraqiel seemed surprised by my statement.

"When?"

I knew the personality of the man in front of me well. He was serious and rigid but completely gentle and even... silly in front of his daughter and wife.

"Soon."

Baraqiel remained silent.

We sat together, watching the night sky. The gentle night breeze lightly hit my chest, making me remember how Akeno found and saved me by chance. I remembered this past year and a smile appeared on my lips.

"I need to go."

Baraqiel stood up and disappeared from my sight in an instant.

The night was showing signs of ending, and I decided it was time to return to the room.

I sighed deeply and fell into a deep sleep.

Ever since I discovered the world I was in, I decided that only through hard training could I survive in this world. Every day I trained until exhaustion.

At this moment, my strength was almost at the level of a low-ranking devil.

"I need to get stronger…"