(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."

······

After traveling to the world of anime, Hikage Miyauchi obtained a magical diary. As long as he wrote in it every day, he would get rewards.

But he had read diary online before traveling, and he knew that what he wrote would most likely be seen by the heroines of this world.

As a salted fish with no ambition, Hikage Miyauchi immediately decided to be a pure fun person in this world.

"What era is it? Who still writes traditional diaries?"

"No one is really willing to write their true feelings in a diary and then be watched by countless heroines, right?"

"My mother told me that this world is very dangerous. Boys must protect their privacy when they go out, so don't think about coming to me. After all, I am a man you will never get."

As Hikage Miyauchi continued to write in his diary, an "Avengers Alliance" composed of heroines who could see Hikage Miyauchi's diary was quietly born.

They gathered together for only one purpose, that is, to find the owner of this diary and ravage him inhumanely!

"Others who traveled through time are all Long Aotian, why should I——

Wearing a maid outfit to avoid being chased by the light music club

Use a cooking pot to fight against a special cursed spirit

· Being treated as dangerous goods by Shana and monitored 24 hours a day

Encountering a giant during a math test

Has it become the "humanoid self-propelled nuclear bomb" that AST and Academy City are fighting over?

The worst part is, Yukinoshita Yukino actually asked me to write an apology for blowing up the gymnasium! ? "

Hoshikawa Taku, who traveled to Japan due to the sudden death of his black-hearted boss's "PUA", was bound to the [Black-hearted Agent System]. The more "black-hearted" he was to the girl idols he signed, the better rewards he could get. So... he signed Toyokawa Shoko with a black-hearted contract with no base salary and 90% profit sharing. He signed Hiroi Kikuri with a contract of "free food, accommodation and enough alcohol". He signed Takamatsu Tomo with the condition of "forming a band for life". He signed Hoshino Ai with a verbal contract of "teaching you what love is"... When they learned about the contract conditions, all the girl idols scolded him for being a black-hearted agent. But when Hoshikawa Taku pushed the contract in front of them, they signed the contract honestly one by one. There was no way, who made him offer conditions that they could not refuse... Hoshikawa Taku said: I am the one who lost money by signing with you, and every penny of hard-earned money I earned from you is what I deserve!

Traveling through the world of Soman, Nakano Yuu starts with the [Oldest God Killer System], completes the system tasks, gets the number of draws, draws the power of gods and various artifacts!

Just when Nakano Yuu fantasized about hunting down the God of Disobedience and becoming the strongest demon king, he didn't expect that this was actually a weird world where monsters and weirdness coexist? ! !

Fortunately, he got the [Ten Powers of the God of War] and the holy sword Juvayus at the beginning.

Facing five sisters with different personalities, Nakano Yuu originally planned to be the only demon king in the world and enjoy life, but he didn't expect...

The second sister Nino went home from school and was haunted by a cursed female ghost named "Shirai".

Just after rescuing the second sister, classmate Gui Yanye suddenly got involved in a weird story called "Sarumu"!

After finally dealing with the Sarumu, a god of disobedience was suddenly summoned above the school.

After finally dealing with the God of Disobedience, I thought life was like this, but a girl who claimed to be able to see "spirits" suddenly asked him for help.

Looking at the different girls around him, Nakano Yuu was silent.

Is there something wrong here?