(Comprehensive anime + multiple heroines + plagiarism, Oregairu, The Heroine of Nowhere, Kaguya-sama: Love is War, Lonely Rock, I Can See, Kashi-sama, Can’t Study Together, The Quintessential Quintuplets...)

What should I do if I travel through time and space and become a fat otaku?

Masao Tanaka was extremely desperate. He had traveled through time. It would have been fine if his name and family were strangers, and it would have been fine if he hadn't been given a handsome face.

But why did he become a typical fat otaku like someone from an anime?

Fortunately, there is a system, but why is this system called the [Degenerate System]?

······

Yukinoshita Yukino: "It's really uncomfortable to be with Tanaka Jun."

Ying Lili: "You are a guy whose head is full of pornographic garbage. Come up with a new plot for me!"

Kasumigaoka Utaha: "I never thought that the person who wrote such a sweet novel would be you, Fat Otaku."

Yotsuya Miko: "Tanaka, help me, just destroy the evil spirits and let me..."

Fujiwara Chika: "Tanaka is really cute."

Goto Ichiri: "Tanaka, best friend."

······

Shiraishi Asu found himself reborn in a merged anime world—as a child incubus no less!

To make matters worse, his newly awakened "Daily Check-In System" kept rewarding him with... questionable abilities:

Hypnosis Series

Time-Stop Series

Tentacle Series

X-Ray Vision

Panties Notebook

"Lewdgan" (Seduction Eye)

"What kind of system is this?!"

Now, not only must he avoid ghouls, monsters, and demons who see him as a delicious snack—

He’s also stuck juggling affections between girls and mature women:

"Mrs. Yuigahama, I should go home… Lady Yukinoshita will get mad…"

"Mai-nee, I’m too young to play your lover in that drama…!"

"Tohsaka-nee, ‘magic recharge’ again?! Saber needs you too!"

A shota incubus’s struggle:

Surviving supernatural threats while escaping dubious rom-com scenarios!

(Genre: Isekai Comedy / Ecchi / Harem / Parody Crossover)

Incarnate as "Demon Sealing Sword Soul" in the Demon Slayer World, one sword kills evil, one sword calms souls!

Incarnate as "Desert Death God" and love and kill Spider Girl, forbearing in the early stage, invincible in the later stage, soul-sucking and painful, the sky collapses and the earth cracks, one blow destroys the mountain, one blow overturns the sea, one blow makes the gods kneel on the ground!

Incarnate as "Star Casting Dragon King" in the box garden world, ** stars pass away, but the glory lasts forever!

...

In many anime worlds.

Shen Yuan is the Dark Sword Demon, the Void Terror, and the Soul Chain Warden. He has set foot in countless planes, such as Akame no Misaki, High School, Type-Moon, Dungeon, and God Slayer.!

"Woman, I endured this punch for 20 seconds! Take my deliberate punch!!"

"Bone Overlord, right? Bone Overlord, my "supernatural evil power" is far beyond your imagination. Do you want to listen to a "Requiem"? "

"How many times have I told you, outside, you have to call me Desert! Desert! Death! God! "

17 cards, can you defeat my card master in one second?"

[MYGO] + [Lonely Rock] + [Daily Life] + [Multiple Female Protagonists] + [Protagonist Humanoid Succubus] + [Invincible Flow]

Bai Li, who traveled through the fantasy world and practiced the ruthless way for four hundred years but still died under the heavenly calamity, gained enlightenment.

If I give him another chance to start over, he would be so ruthless that even a dog wouldn't be able to behave!

When he opened his eyes again, he actually came to a huge mess of anime world.

In this life, I just want to live a gentle and peaceful life like plants, but they keep coming.

……

Goto Ichiri: It was obviously me who came here first, whether it was to get to know Baili-san or to become friends with him...Nijiga, why did you?

Nagasaki Suyo: Is it bitter? It's over. Xiaoxiang, please don't contact me again. I'm afraid Bailijun will misunderstand.

Yukinoshita Haruno: You said you have a girlfriend? Does that mean the position of fiancée is vacant?

Entering a dull and boring "anime" world, the original storyline is turned upside down.

For example, an ordinary campus love comedy is played into a "king's game" where no one survives?

For example, a passionate story of a superpower city is transformed into a collision of superpowers and technology, sublimating the theme and looking forward to the future of mankind?

For example, a normal passionate story of a brave man killing a demon king is turned upside down and the meaning of good and evil is reshaped?

"Wow, this heroine is so beautiful, give me a lot of XP, I love it xdm!"

"I really want to see the male lead and the male lead send dog food, gkd!"

"Wife!!!"

Looking at the barrage of comments passing by, Mo Ying smiled slightly, then took out the silenced pistol from his backpack and aimed at the so-called "male lead" in front of him.

[Light Yuri Warning: Those Who Dislike Entangled Relationships, Beware]

[Shido Becomes Shiori]

[I’ll Take Them All]

[The Protagonist’s Personality Gradually Changes]

I got isekai’d? Seriously, who even does the whole "transmigration" trope these days?

And a system too? Just a reskinned "Heroic Spirit System," huh?

But what kind of skills is this thing giving me?! What the hell does "Bishōnen Seducer" even mean?!

Tokisaki Kurumi: Ara ara~ Nanjō-kun, you’re just adorable, aren’t you?

Nanjō Saku: Who said this skill was useless? This skill is freaking amazing.

Ning You, a serious young man, traveled to Teyvat because of staying up late to work overtime, and was adopted by Teyvat's top milk cap, Kujo Saro. He was also possessed by the succubus system like a resentful species. In order to grow up, he can only seduce the big sisters, but...

"Xiaoyou... are you going to be in white... or black today?" Saro, who tied himself up, asked softly.

"Dad~ you don't want your daughter to be sad, do you?" Yae Shenzi, who likes to be a daughter, threatened.

"Xiaoyou~ it's time to teach 'martial arts' today~ you can't~ slack off~ ah~" The already collapsed general and the covetous shadow gently picked up Ning You.

"That... sisters... I... I know I was wrong..." The little Ning You looked at the big sisters around him and wanted to cry but had no tears.

[Comprehensive anime + paradise + development + multiple female protagonists]

Notice!

This book contains both the daily life of Sogaman and the infinite flow of the world! And neither of them is the focus!

Since it is a combination, it is definitely impossible to view one aspect alone, so if you only want to view one of them, don’t click in!

Stop asking why so many daily routines/so many battles?

……

On the Tokyo Tower, Jolyne looked around.

Kato Megumi walked on the boundary between life and death, lightly drawing the line in her eyes.

Shinomiya Kaguya put down the lightning in her hand, and behind her was the falling Takama-ga-hara.

Yukinoshita Yukino untied the thirteen restraints and completely released the power of the Holy Sword of the Stars...

All curly-haired baboons, please put down the bananas in your hands.

because

Evolution is about to begin!

Don't miss this time...

(Main world: Oregairu, Angel Next Door, Visible Girl, Kanoko, etc.)

(Paradise World: High School of the Dead, Demon Slayer: Kimetsu no Yaiba, Fate, One Piece, Marvel DC...)

This book is also known as: Help, my life is surrounded by troubled girls; I, who live in the world of anime, strayed into the paradise of evolution; Darwin is a curly-haired baboon, is there something wrong with him? I want to get into the University of Tokyo, so I went on a killing spree in the paradise...

Bad news: I’m only a juvenile Evil God. True invincibility is still a long way off.

Worse news: In the not-so-distant future, a group of apocalyptic witches—each possessing terrifying powers—will throw the world into complete chaos.

Thankfully, I, Lucius, have a system that lets me run countless simulations to uncover each witch’s weakness. If I can correct their flaws in the real world, I can drastically shorten my own growth period.

In other words, the answer is obvious—

“It’s simple. I’ll just save the world.”

【Stage of Hollow Rehearsal · Puppet Theater】

【Epoch of Calamity’s Blaze · Burning Wastelands】

【Eternal Spiral of Chaos · Frenzied Lands】

【Frozen End of Time · Era of Stagnation】

…One by one, I rewrite each apocalyptic ending.

But something is going wrong...

“They're still fighting over who gets to ‘use’ me—please, don’t let them reach an agreement. If they do…”

The door suddenly bursts open. Before Lucius can even close his diary, he's seized by the witches.

“I’m here to save the world! What are you trying to do to me!?”