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!

Eriri: Just a mere Chiba, you want to be a light novel master? Sagiri: Nissan, I'll work hard to become an illustrator worthy of you. Kani Nayuta: I love you so much, senpai! Senjumura Masaru: You're number one in my heart. Kasumigaoka Utaha: Sensei, I'll surpass you! Gokou Ruri: I'm your ultimate apprentice. That day, his journey as a light novelist truly began.

(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."

······

One day, Su Mu opened the bathroom door as usual, and suddenly found a strange beautiful girl taking a bath inside.

After being mistaken for a pervert, a pervert, and a beast, Su Mu finally realized that the door of his bathroom had traveled through time!

From then on, he lived with many anime heroines, and was able to obtain rare ingredients from the worlds of One Piece and One Punch Man.

Food Wars + Miss Kobayashi's Dragon Maid + Part-time Job, Devil Lord, if you want to watch it later, you can add it. ...

Zongman + Aura Revival + Behind the Scenes

The protagonist, Taichi Kitagawa, dons a shadow vest and triggers a spiritual revival in the anime world.

I am the shadow, lurking in the darkness, hunting shadows.

Takamine Haruto transmigrated into a crossover anime world. His childhood friend is Eriri, his deskmate is Yukinoshita, the school beauty next door is Kaguya, and his new neighbor is Gabriel.

He originally thought he could enjoy a peaceful life in this slice-of-life anime setting!

But then—he stepped outside and found the Female Titan, Annie.

Around the corner, he ran into the gluttonous Kamishiro Rize.

A concrete statue that twists people's necks the moment they look away?

A shy entity that hunts you to the ends of the earth if you make eye contact?

An immortal lizard that adapts to any environment and continuously evolves?

Takamine Haruto was overwhelmed.

To maintain his peaceful daily life, he established the SCP Foundation to contain anomalies from across the multiverse!

How many heroines are there? Uh... The author doesn't know. I'll just write as much as I can. [The protagonist of this work doesn't have a cheat code. The only thing he has is the foresight of a time traveler.] This work contains four elements in one: [funny, romance, battle of wits, and passion]. If you like this work, you can take a look.

Good News: He transmigrated into an anime world and awakened an omnipotent ability.

Bad News: He's ill.

...

Takanashi Rikka: "Oh most trusted ally of the Evil King's True Eye! Let us witness the world's ultimate truth together!"

Murasakibara Saeko: "Please accept me as your disciple and teach me supreme swordsmanship!"

Kobato: "Kukuku, my other half! Come awaken my sealed power!"

Eri: "Idiot! Stop acting crazy here!"

Shinjou Masuzu: "Your first kiss partner isn't Eri - it's me, Shinjou Masuzu!"

Dekomori Sanae: "I beg you! Grant me power! I'll do anything, death!"

Travel through the world of anime. When anime heroines develop a favorable or unfavorable relationship, they can be converted into points. If you can't increase favorable relationships, how can you increase unfavorable relationships? The more they dislike you, the more points you earn.