The apocalypse has arrived, the planet has expanded, and countless craters of varying sizes have appeared across the world. Within these craters, mysterious black mist constantly emerges. Some creatures that come into contact with the mist mutate. Plants decay, zombies appear, supernatural abilities awaken… The sky is shrouded in black mist, the earth is overrun by bizarre creatures, and the survivors, in order to survive, head west, intending to gather the strength of all humanity to build the world's largest shelter. But Chen Yu has a different idea… Chen Yu awakens the [Intelligent Machine] ability, allowing him to bind to certain mechanical creations and continuously modify and upgrade them. Hiding in place and passively taking hits? A real man takes the initiative! A train, flashing with orange-red light, speeds through the thick black mist. The hundreds-of-tons-heavy locomotive roars, silencing anyone who dares to obstruct it…

"Shanghai, June 25 (This newspaper) - Unidentified flying object enters the solar system..." A mysterious flying object descends, plunging the entire population into a wasteland, mired in a death trap! Deadly eternal nights, eerie poisonous rain, extreme cold storms, and despairing pollution... Natural disasters strike frequently, leaving no one unscathed; survival and development become the main themes! Only by building shelters can they withstand the relentless onslaught of destruction. Fortunately, Luo Yuan awakens the Doomsday Construction System, step by step transforming the shelters into impregnable underground fortresses! [Wooden Planks] - [Stone Door] - [Iron Door] - ... [Ventilation] - [External Circulation] - [Dual Circulation] - ... [Rudimentary Shelter] - [Wooden Shelter] - [Stone Shelter] - ... While others are still struggling, he has already begun to enjoy life, possessing his fortress and looking down upon the wasteland! "What? The monsters can't even get through Brother Luo's door?" "I heard..."

"One must learn to face youth head-on." "To gain love, one must first acquire the ability to love." Shizusui Asama, using words she herself didn't believe a word of, helps the protagonists achieve their desires. Embarking on a path of shadow, escaping the banality of evil, and ascending to the pinnacle of supporting roles. This is a story of a solitary soul reflecting the entirety of Tokyo. Other titles: *Eiwa Academy: The Shadow of Strength*, *I Really Didn't Want to Be the Protagonist*, *Living in Tokyo, Earning a Billion Yen a Day as a Matchmaker*, *I Loaded a Romance Game, But I'm Not the Protagonist*.

Synopsis: Entertainment industry + plagiarism + system novel + top idol + K-pop.

In his previous life, Cui Shan loved music, but despite his tireless efforts, he was only a third or fourth-tier singer. So he was reborn on Earth, a planet almost identical to Earth, but with highly advanced technology and a very backward music scene. Thus, Cui Shan began his journey from South Korea to the pinnacle of Asian music.

Note: The timeline may be incorrect.

Wearing Gotham clothes, I was supposed to be deported, but how did I end up in Arkham? As he was being put into the police car, Zheng En was still optimistic. Although he had suddenly transmigrated to an unfamiliar place, being deported back home was better than staying in America, shooting guns. But something about the road seemed off. ...Wait, wait, wait, why does that building ahead say Arkham Asylum? At the same time, the crackling electrical activity in his head finally stopped. The system had finished loading, and a voice like a throat cancer patient rang in Zheng En's mind. He said he was Batman. Maybe I really should go to Arkham to calm down, Zheng En thought. The so-called system called itself a life simulator. Because the initial location was Gotham, it automatically loaded Batman as a mentor to guide him through life in Gotham. During this time, he was able to learn and acquire fragments of Batman's skills: martial arts master, linguist, firearms proficiency... And when Zheng En went to Metropolis, he loaded a new mentor: Superman. Steel body, cryogenic breathing, flight, thermal vision... Jung Eun: Wait, can these also be learned?

[System + Beauty Transformation + Sudden Wealth + Ancient Martial Arts + Medical Skills + Domineering CEO + Sweet Romance]

Xiang Nan had lived a miserable life for 20 years, always just average! But one day, she was bound to a system:

[Ding~ Host's emotional value detected as -10. A reward of 100 billion cash is given to the host. Unused amounts will be cleared!]

[Ding~ The system detected that the host has an extreme desire to become beautiful. The host is rewarded with the opportunity to become the only perfect beauty in the world within three years!]

[Ding~ The system detected that the host desires power and freedom from being bullied. A reward of ultimate strength has been given: the host can now take down ten people with a single punch!]

...

The system rewards are just too many things: beauty, wealth, strength, etiquette, medical skills, gourmet food... and all sorts of other skills.

From then on, Xiang Nan's life became incredibly enjoyable.

But I'm already so good to you, can't I enjoy a beautiful romance?

[Host, this system can't reward you, but...]

While munching on the tall, handsome oppa, the middle-aged man, or the domineering CEO in front of you, do you want to have a sweet romance?

A story of a deeply affectionate, domineering CEO and a stunningly beautiful, sweet girl.

While at Hogwarts, I awakened the Middle-earth Survival System, but something about the system was a bit off… [You received your Hogwarts acceptance letter—Main Quest: The Fellowship of the Ring!] [You didn't go to Gryffindor, but instead joined the Hufflepuffs, a bunch of gluttons—Reward: Hobbit Racial Talents (Stealth + Gluttony)!] [You refused Malfoy's handshake—Reward: Strength +1 (That's how you deal with fallen elves!)] [You wielded your wand powerfully—Reward: Two-handed Sword Strike (Magicians should have some Strength)!] The system actually thought I was in Middle-earth from Lord of the Rings?! …Years later. Voldemort led his army of Death Eaters to attack Hogwarts. Before the Dark Lord could even finish reciting Avada Kedavra, Rowe Baggins was already in front of him, wielding Narsir, and with a backhand…

"You'd better find something to eat before dark." This was the first thing Kane heard after running away from the Dursleys. Okay, I knew I hadn't completely escaped the Famine world... but thankfully, his ability to manipulate his shadow in Famine still remained, not only saving him from starving to death after running away and being killed by invading shadow creatures at night, but also bringing him other benefits in this world. Wait... what does "for using dark magic in front of Muggles, now granted a VIP status in Azkaban" mean? Dumbledore blushed and quickly snatched the envelope from Kane's hand, replacing it with another. A Hogwarts acceptance letter, this time it's right.

Initially, Yun Deng refused to enter the Challenge Space. Having already reincarnated as Kiana, Bronya, Mei, and other Valkyries multiple times, she always met with death, unable to change anything. The Queen descended, and she became the Herrscher of the Void, judging all things. In her final lesson, clad in crimson, she slashed down the Sword of Hope. Meteors ignited the heavens, and the meteors protected the sky… This time, back at the starting point, Yun Deng didn't want to become a Valkyrie; she just wanted to slack off and sleep. Kiana was still the same idiot Kiana, Mei was still the cook, and Major Himeko was lying on the lawn drinking. But to regain her power, Yun Deng was dragged into the Challenge Space by Kiana, starting as the Herrscher of Flame, challenging the Eternal Flame dungeon. "Flame! Draw your sword!" "With this blazing fire, nothing can be broken!" "I will burn away this darkness, letting the light shine into the distance." Seeing the godlike Herrscher of Flame, the surrounding Valkyries were shocked. Bronya: Is this the idiot Kiana? Mei: Wait, wait, wait, why are you saying I'm the Herrscher of Thunder? Kiana: I have six cores? Fu Hua: I've turned evil? Himeko: I'm dead?

[Simulator + Cultivation + National Fortune] A cultivation-themed alien realm has descended upon Earth. The Heavenly Dao will select one lucky individual from each country to travel to the cultivation world, and the entire cultivation process will be broadcast live. The cultivation level of each country's representative will be shared with the entire nation! China is excited—we're familiar with the cultivation system! Other countries are frustrated—they must first learn the crucial Chinese characters! After the alien realm opens, the Chinese people see their representative's progress is slow. "This is a perfect start! Why hasn't Qin Wen joined a cultivation sect yet?" Qin Wen, now awakened with a cultivation simulator, says: Don't panic, let me use the simulator to get another golden talent! [You set sail to seek immortality. With your golden talent, you rapidly rise in the cultivation world, becoming a shining new star.] [You cultivate to the Nascent Soul stage, sweeping through the mortal realm, among those of the same realm...]