Lu Jin traveled through time and space and became the principal of a garbage academy on the verge of bankruptcy. He discovered that the school was in a dilapidated state, all the students were scoundrels, the school beauty had transferred to another school, and the teachers had resigned.

In desperation, he suddenly binds himself to the [Strongest School Rules System] and must make outrageous school rules in order to become stronger.

School Rule 1: No leave adjustments are allowed. Violators will be expelled!

School rule two: Teachers are not allowed to assign homework!

School rule three: Classes start at 10 a.m. every day and end at 4 p.m. No involution!

School Rule 4: All girls in the school must wear white silk maid outfits. Violators will be considered absent from class!

Tsundere school beauty: "Are you crazy? Let me wear a maid outfit?" (The follow-up is really sweet)

Bad Girl: "Do you believe I turned your principal's office upside down?"

Cat-eared Loli: "Principal, why do you make me wear this kind of clothes?!"

Netizen: "What kind of school is this? Where is the morality? Where is the bottom line? Where is the address?!"

Su Xiaobai, who suffers from a terminal illness, is helpless and waiting to die in a cold rental house.

But what he waited for was a life simulation system. Only by completing the simulation again and again can he rely on the system to survive.

[You came to the Azure Star in the Star Iron World, became an abandoned baby, and were adopted by the Black Tower family.]

[You are a natural singer, and Heita has become your nominal sister.]

[But the disaster outside the border puts the Black Tower in imminent danger. You decide to save your sister.]

On your eighteenth birthday, you climbed a tall building, resonated with the same harmony, burned yourself, and sang your last song.

[The flames of destruction engulfed you, leaving behind only a burnt diary with the words "She is so beautiful"]

[The genius who never cries broke down in tears. To revive you, she solved the solitary wave algorithm problem. To wait for you, she achieved rejuvenation, her appearance frozen in time at her most beautiful...]

Second simulation:

[You become Fu Xuan's senior apprentice, and young Fu Xuan is very dependent on you.]

[Until the war with the Fengrao people broke out, you tried your best to convince your master and Fu Xuan to retreat together, and personally presided over the prayer for the hunting patrol...]

[The hunting arrow came crashing down on you like a meteor. You died under that arrow that could destroy everything, but you also saved her and her master.]

…

After several simulations, you recovered your health. You thought you were just a passer-by in their lives, and the system pulled you, healthy and complete, into the Star Iron World.

then……

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.

【mygo】+【Lonely Rock】+【K-ON! (Trace)】

(Daily Relaxation, Love, Music, Gravity Distortion)

Bai Qiu travels to the world of music anime, and can redeem rewards by playing music with the girls.

The easy-to-handle Goto Ichiri, the archangel Hongxia from Shimokitazawa, the sunny Kita, the scumbag Yamada Ryo...

The music scene has a great atmosphere!

The girls are simple, have good personalities, and are relaxed and happy.

At first, Bai Qiu thought so too.

until……

Takamatsu Deng: Can you form a band with me for life?

Nagasaki Suyo: In the past, my mind was full of myself, but now it’s you!

Shoko Toyokawa: Your mind is full of others!

Shiina Tatsuki: The light is important, but so are you!

…

Bai Qiu: Can anyone tell me what this inexplicable feeling of heaviness is causing?

Chihaya Aine: What about me?

This world is a little strange. There are a lot of live-action dramas that should be animations, but they are not. There are obviously many two-dimensional girls, but there is no original plot.

The time traveler Qin Youren came to this world, obtained the shining and popularity system, and inherited a film and television company that runs a video website.

In order to feel the shining of the girls and make the company great again, he began to film and plagiarize...

"The Visible Girl" brings horror and a new JK combination.

"Soul Eater Zero" sisters love and kill each other, healing the heart.

"Shoujo Kageki" brings a little stage shock to the audience.

"Steins;Gate" starts a time jump journey.

There are also "Gridman", "Blue Pig", "Violet Evergarden", "Lonely Rock", "MYGO", "Your Name" and so on...

Looking back, Youren found that he had led the company to the top

"...After saying so much, President/Youren/Youren-san/Youren-kun, who are you going to marry?"

"Only children make choices. I want them all."

After traveling across time and becoming an elementary school student in Japan, there are several more figures around Si Yue Yu Zhi.

The single mother next door raised five children alone and had a hard life.

The hearing-impaired girl in the class was always bullied and humiliated.

A certain young lady was isolated by her classmates for some reason.

...

He just stood from the perspective of an adult and gave them a little help without asking for anything in return.

He thought they would start a new life each, but after many years, they still stayed by his side.

"Aren't we childhood sweethearts? It's natural for me to be with you."