The protagonist Mona is a young person of the new era. By chance, she travels to the Arknights, the world of Terra.

Life was good, I had found something I loved, and I had a place to call home.

It’s just that I feel like this place is involved in too many things, and I always get involved in some weird things.

Mona: Mom, I want to go out and have some fun!

Kal'tsit: ...

Mona: Doctor Kal'tsit? Boss Kal'tsit? Kal'tsit! Kal'tsit's mom!

Kal'tsit: No, you've been to the medical department seven times this month. We can't let you out again!

Mona: QAQ

"This land is rife with conflict, but here, we will protect everything. We uphold the dignity of the law and do our utmost to stop any attempt to subvert the order of Longmen. Even if the road ahead is filled with difficulties, we will fight bravely. We are the Longmen Guard Bureau."

Xu Ling: "Mr. Chen, the promotional video is finished. Can I leave work now?"

Chen Huijie: "How come the Guards Bureau has someone like you?"

Shi Huaiya: "Don't worry about this stubborn fan. I'll pay for your dinner after get off work. Eat as much as you want."

Everyone in the Imperial Guard: "Long live!"

On Terra, the remains of a former civilization are activated by the Doctor's operation to review the progress of various projects. Oldham, a next-generation android codenamed AMa-09, awakens from a long hibernation.

However, his father was asleep, his mother was missing, and his sister Kal'tsit was nowhere to be found wandering in this unfamiliar land.

But Oldham, a man-made man with his own ideas, decided to take advantage of his father's sleep to share his worries. He would check on the progress of various plans and revise those that weren't going smoothly. His purpose was to ensure the better survival of humanity, and now was the time to fulfill that duty!

Terra's darkest era officially began the moment he woke up.

[Pseudo-group portrait][Single female protagonist][Abstract][Abandoning moral integrity][The most respected Ark author of Theresa on the entire network][Multiple Ark worldviews][Complex elements but does not involve non-Ark worldviews][System is hidden]

Travel to Arknights, become the Blood Demon Lord, and get help from the system!

Dukare: As a new noble reformist, I declare that the transformation of Terra has begun and Kazdel will be revived in three years.jpg

Wait, what do you mean by Blood Demon's vomit being a non-addictive hallucinogen and Sarkaz bodily fluids being intoxicating? What do you mean by Terra having no image rights, newspapers writing imperial edicts, and K-station livestreaming Water Dragon paying tribute to Lateran?

Is the Deep Sea Church abducting fallen sea maidens? Why is this Anana purple? What does it mean that the Originium is a relic of the Far Drifter's human father? Demons—demons are normal.

Which TM Terra is this!?

The Blood Demon Lord took a deep breath and put down the newspaper.

Anyway, first select a national fighter + an assimilation fighter, and focus on reviving Kazdel...

Three years later, on the balcony of the Blood Demon Lord's house

Light Curtain Game: "As everyone knows, the Blood Demon Lord is a time traveler, Dukalei won the MVP, and the system is a dog that won without effort!"

The Blood Demon Lord watched the sky being exposed, calmly took a sip of red tea, and opened the newspaper published by the Terra Community.

"A parallel world? That's interesting."

The guards under the balcony said: "Your Majesty, your drawing book has been stolen again by the Babel Group and the former Military Commission!"

“…”

Why I'm not surprised at all.

Ducare: Kazdel is also very abstract today...

"My name is Qi Yuan, an ordinary Longmen citizen living in the slums." "I have a system called [Praise for Noble Morals]. As long as the good deeds I do touch people's hearts, I'll gain corresponding public virtue. The more people I touch, the more public virtue I gain." "Public virtue has many uses, like extracting items, strengthening the body, and skipping steps to master skills..." "So, I live a simple life in Longmen, doing one good deed a day, touching more people with my good deeds, while also constantly consuming public virtue." Until the Guards arrived. "I've repeatedly emphasized that I didn't corrupt the customs of the Terra continent!" "Lin Yuxia has always called her father Lao Deng, and the Emperor's performances have always been taxed as animal performances. They've always been like this, not me!" Shi Huaiya said nothing, pulling out a dictionary-thick book of merits (??) and slamming it down on the table. "Ning is a great philanthropist?" Qi Yuan pondered, looking at the countless good deeds before him.

[Main character is purely a plot device + no romantic pairing + angst + live streaming across multiple worlds]

Ling Xinyu unexpectedly became bound to the Multiverse Live Streaming System and started live streaming Honkai Impact 3, attracting a large number of ancestors to watch.

Himeko: This is the final lesson...

Bronya: The only constant truth about humanity is that human truth is bound to change...

Alicia: Our story has ended. From now on, it's your story...

Kiana: I will turn this imperfect story into the one we hope for. I just want you to see it all...

Raiden Mei: All I know is that you are more important than this world!

...

Watching the stream of knife-like comments coming one after another, a group of veteran viewers exclaimed that they couldn't take it anymore.

Meanwhile, in every time and space dimension, one famous person after another suddenly realized the truth.

Yue Fei: This world is not perfect, but I am determined to transform this imperfect world into the one we aspire to be. Now that the emperor is cowardly in battle, all I can do is pave the way for future generations with my life!

Han Xin: Compared to this world, are you more important? The scheming between ruler and subject, I betrayed the very person I should have let down. Now, in my twilight years, Ji Tao, do you still love me?

Li Shimin: The only unchanging truth for mankind is to change the truth itself? I've got it! From this day forward, I will make our nation strong through science and technology!

In addition, countless famous figures and scholars from the Han, Ming, Qin, and Three Kingdoms and Wei-Jin periods learned a great deal from the sword.

Every dynasty will undergo tremendous changes!

【Broken Iron + Collapse + Aili + Live Broadcast】【Delivering Beauty】

Ai Lishiya occasionally gets the love live broadcast system, and completing the live broadcast can gain "wonderful love value"

Not only can you exchange for wonderful props, you can even trigger some miracles...

Alicia: Hi♪~ Are you ready to go on a wonderful journey with me?

Raiden Mei:?

Kevin: ...

Walter:? (This...this isn't right)

Tesla: What are you thinking about for not going home for such a long time!

Walter:!? ? (No, Honkai chasing me is fine, but why is Tesla here too?)

Bai'e: Are you Xilian...'s sister?

Xilian: Wow♪ I actually have a sister?

The introduction is weak, please move to the main text

(New worlds or timelines may be added later.)

Current Progress: Fourth War (Manned Spaceflight) → Original Millennium Holy Grail War (Historical Choice Prerequisite) → South American Amazon (Alien Impact on Earth's Ecosystem) → Clock Tower (Developing Self-Power). After losing a fierce karate bout to Nitou Car, Xing Qingjiu awakens to find himself transported to the Type-Moon world. There, he encounters a Servant who calls himself the Messiah—why would a Servant who calls himself the Messiah be a science major? Why would someone skip the Holy Grail War to go to the moon? Researching the nature of the soul... Wait, let me do it? I'll tackle cutting-edge issues? Okay, I'll win! "It's precisely because I can't touch them that they sparkle, and it makes my heart flutter," said Xing Qingqiu, who had just returned to Earth from low-Earth orbit. "The sparkle that once seemed unreachable to me even if I wanted to touch it is now within my reach, and it still sparkles." "I have a future I want to touch, a world I want to change, and ideals I want to realize." "There are so many unknowns waiting for me to explore ahead. As my teacher leads me into the door of a new world, all I see are stars."

[It has a female protagonist, but doesn't join the Starry Sky Train, sidelining the main storyline.] Spa traveled to the Star Rail World and, by chance, gained the ability to "replay the past," leading him to join the Interstellar Peace Corporation. In just a few years, Spa achieved both fame and fortune, becoming one step away from becoming one of the "Stone Heart Ten." But... my ambition is to conquer the vast sea of ​​stars, to avenge my enemies! A tragic incident sparked a rebellion, prompting Spa to resign from Diamond. From then on, the debt collector of "Cun Hu" became the life-hunter of "Patrol." His legacy was left on the fertile battlefields of the Patrol. A monument to Spa was erected on the snowy plains of Yalilo. He was a new legend of Punklod and a permanent guest of honor in the Immortal Boat Alliance. With a single gun, Spa slew the Antimatter Legion and the creatures of abundance in fear! ... Estelle: That's Spa's story. He's truly formidable. Feixiao: I disagree! Your description is too conservative. I can't possibly defeat Spa. Mockingbird: It's really hard to describe Spa's abilities... Anyway, I want him to be a guest at my concert! () Silver Wolf: I want to play a game with Spa... Hehehe [Memory] [Preservation] [Hunting]... Three destinies intersect, stepping into the galaxy!

"Playful Type-Moon" is a gal game with a high degree of freedom. Players can unlock new CGs by improving the favorability of the heroines.

After three days of staying up late, Alvin finally successfully unlocked all the CGs and maxed out the favorability of all the heroines.

The bad news is: the favorability is full to the point of overflowing.

But fortunately, it's just a game, so it doesn't matter even if it overflows... Originally, that was the idea, but -

Alvin never expected that he would travel to the game world by chance, and meet Altria, Morgan le Fay, Tiamat, Scathach, Sajo Aika and other Type-Moon heroines in accidents again and again...

When Alvin noticed those pairs of extremely gentle and dangerous eyes, his eyes gradually lost their spirit and he regretted it.

"So... why did I increase the favorability to overflow in the first place?"