Reborn in Hokkaido, he is a wind band advisor and instructor.

As an underdog recent graduate, Kitahara Hakuba is in charge of the system and is full of confidence to make achievements here.

At first, he didn't care about the atmosphere in the band, as adolescent girls always have some sweet little thoughts.

But as the music festival came to a 'perfect' end, the atmosphere within the wind band became increasingly unsettled.

"Can you be my friend for life?"

"Please! If I don't have you to help me, Wadasi~~!"

"I've never been happy playing the oboe."

"Because the moonlit night looks like it's about to break down."

"You are a person who only thinks about yourself."

"The first trumpet is trying too hard."

"Moonlight, move."

"this...

"Interview, Mr. Bai Yu, you once said a very classic saying..." "Oh~ that~ a restaurant owner who doesn't want to become a light novel writer is not a good fighter." "Mr. Bai Yu, do you mind introducing the restaurant?" "Of course~ this is Soraka, the attending physician of the restaurant, she... Crowley! Let go of Soraka! Your blood is going to be sucked dry! Hokage over there, stop playing Landlord! I didn't ask you to switch to Mahjong!" "They are all small mistakes~ Next is the waiter in the restaurant, Mengmeng, what are you going to do with Saber?! Pick up Souta from school? That's okay, tell that kid to come here for dinner at their house tonight~" "Oh, and... what are you all doing?! Interview! Be serious! Where's Lucifer? Come out to take care of things!" Everyone: "Go to Rikkai University next door to watch the tennis match~" The group of reporters looked at Bai Yu who was forcing a smile, silently turned off the camera, made a cross on his chest for these naughty kids, and said Amen in unison.

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!

Good news, I traveled through time and space, and it is still a peaceful everyday world.

Bad news, there is a chat group, and the style of group members is different from the normal world.

Kiana: Group members, run, I have a dual personality!

Tallulah: One hundred people challenge ten kilograms of flour to live in the snow for a week, come on! Do it, brothers!!

Toyokawa Shoko: The boss owes wages again, so annoying, it has been two months without paying wages, I think this damn boss wants to change his mind! Family, gather in Tokyo tonight! Get ready to steal hearts!!

.....

Suddenly traveled to a happy and beautiful everyday world, and also had a dimensional chat group. The two joys overlapped with each other.

I should have had a dreamlike happy time, but why, it turned out like this...

Why is your style different from the normal world!

Traveling through the second dimension, both parents are dead, and there is money and a house. Although there can be no sister due to the rules of the cat guest, this is definitely the direction of the protagonist of the daily harem in the second dimension. I guess the next step is to flatter the house and be surrounded by girls, right? [Welcome to the "Sacrifice Game", I wish you can witness the end in real fear] Wait, this script is wrong, right? Corpses are whispering, caves are crawling, paper people are asking for directions, ghost villages are wandering at night, and pupils are peeping under the bed... The weird rules weave blood and cannot be escaped. The only way is to face the endless nightmare and seek a glimmer of life. So being entangled by these horrors, can you give me a system, the best kind of sign-in is awesome! When thinking about this, I found that I got the ability to replay after death. It is indeed a plug-in, but doesn't this mean that I have to keep trying and making mistakes with my life? I don't want it, I don't want to be a protagonist like 486! Who will save me! Then he turned around and saw the girls trapped behind him, including Kaguya Shinomiya, Chika Fujiwara, Ichiri Goto, Miko Yotsuya, etc. Damn it, come on! How can I let a beautiful girl sacrifice herself in such a place? I want to create a happy world without Kyon and Kaba-san!

The beginning creates great fortune and the protagonist travels to another world.

Qin Zhou traveled to the world of Food Captives and joined a chat group, where familiar group members were.

Pink Fat Lady: Wow, what a beautiful rainbow fruit♪.

Silly Fu Fu: Small, no, big cake? ! ! !

The King of Saber Hair: The people in this world are so happy. Saber Hair stands on end!

Magenta is not pink: It’s a bit interesting and you can pass by it.

God's Tongue: A magical and delicious ingredient that satisfies your tongue.

My name is Yotsuba Mahiro, a time traveler.

Sent to the Demonic World by an alternate-world teleportation ambassador, I became a Adjustment-Type magician of the Yotsuba clan.

Besides being born with eyes capable of replicating all forms of magic and physical techniques, perhaps my greatest supporter is my cheap mother, Yotsuba Maya.

After fifteen years in the gloomy Fourth Research Institute, my cheap mother suddenly gave him a crucial task.

"Although you're a Adjustment-Type magician of the Fourth Research Institute, you're also my child."

"So, it's also your duty to produce a worthy heir to the Yotsuba family."

It's just about carrying on the family line, a simple matter. Is the bloodline of the Ten Master Clans and the Hundred Houses enough? What if

I add your sister Miya? What if

I add the lolita from the Black Bullet world?

What if I add the assassination group from the Zelda: The Sisterhood?

What if I add a singing diva from Guilty Crown?

...

After traveling through ten worlds, he asked Maya again.

"Is that enough now? If not, I can add more!"

Mahouka (Temporary Absence) - Black Bullet - Return to Mahouka (In Progress) -

Volume 1: The Beginning of Mahouka

Volume 2: Black Bullet

Volume 3: Return to Mahouka

..Pochi-chan, you don't want your secret to be known, do you?"

"Don't look back, I'm really just helping you make up for your demons."

Life is restarted, and the goal of this life is to refuse involution and live to ninety-nine without illness or disaster!

As a result, this world is very strange, full of evil spirits and monsters. Kitahara Makoto can only transform into an exorcist monk to perform evil on all kinds of evil spirits! That is! Sudden!

Pochi-chan: "Then, that... Kitahara classmate can only bully me?"

Ijichi Hongxia: "Since you have foreseen the future, Makoto-kun doesn't want to be chopped by me again, right?"

Kita Kita: "It was obviously me first... You guys sneaking away one by one is too much!"

Sakurajima Mai: "Zha Nanjun, the child must have my last name."

(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?