(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."

······

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?