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.

Equipped with the cheat code for Dark Dungeon, Doc Otter arrives on Terra, the land of the beast-eared girls. By equipping accessories, Otter can establish a mental link with the heroes, enabling micromanipulations like sniper operators moving five centimeters to the left... or forcibly breaking through mental barriers and taking over anyone's body! He's the protagonist, yet he's become the villainous boss... Wait? The cheat code is Dark Dungeon? No "1" suffix? That's fine. Is the protagonist and the boss the same person? Unusual? Not at all. Traces resembling an Iron Crown have been imprinted across Terra, following the footsteps of the Rhodes Island land carrier. Looking back, Otto couldn't help but sigh... There was a shark who had mistaken him for the "Lord of All Things" and who pretended to be sick from time to time to take advantage of him after waking up; a killer whale who seemed cold but was actually stupid and sold herself to him without knowing why; a self-redeeming dragon girl; a hypocritical bomb maniac; a premature bread maker; a Hippogriff female teacher with a collar and tied up all over her body... and Kal'tsit made a handgrip dynamometer gesture from a distance: A bread maker, right?

"If the Earth were shrunk to the size of a glass marble with a diameter of 1 cm, then the Sun would be about 117 meters away from the marble, a sphere with a diameter of about 1.09 meters. Coincidentally, it fits perfectly in my living room." A solar system model, a very common type of popular science textbook. Chen Ran was sure he had simply turned his head, but how did this solar system model suddenly come alive? "Terra? This planet model says Terra?" Which Terra? "Planet native detected: Skadi..." Oh, this Terra, Arknights, right? And Skadi, the killer whale. "Skadi is leading the Sea Si herd in an attempt to break through the star pod." The translucent bullet box flashed for a few seconds, completing the following paragraph. Chen Ran: "?" Wait a minute? Which Skadi is this? Which world line's Terra is this from?

[Day 1: I, Lu Shang, male, 24 years old, am a time traveler.] [Good news, I've traveled to Arknights.] [Bad news, everyone except me is just an NPC.] [Everyone only mechanically repeats the same sentence, doing the same thing every day.] [I suspect they're playing me.] [So I went to find the all-knowing Kal'tsit.] [Day 2: Kal'tsit is very smooth.] [It's confirmed, they are indeed all NPCs, not playing me.] [So what should I do next?] [Am I the only living person in the world? Will I die alone?] [Day 4: Angelica unexpectedly looks thin in her clothes.] [Day 5: Cintrea is really plain.] [Day 6: Lu Shang, Lu Shang, how could you be so depraved?] [Day 7: Skadi warms people's hearts.] [... ...] [Day 30: Wait, Kal'tsit seems to be alive?]

"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.

Qin Tianling traveled to Terra and gained access to a system that allowed him to draw prizes daily and purchase items with Longmen coins. He'd occasionally win some bizarre items, including the Destiny 2 Golden Gun, the Call of Duty exoskeleton, the Old Man's Ring Hunting Serpent Spear, the Hollow Knight Dream Nail, and many more. But it looked like he wouldn't be able to use them, did he? As a Penguin Logistics agent stationed in Rhodes Island and a part-time third-rate detective at the Carp Detective Agency (who had resigned), Qin Tianling couldn't help but ponder. These things looked like they were about to get him into a fight. [The Cuckoo Cry]

Terra's worldline collapsed. None of the operators who were supposed to go to the island did. "—Shen Cangye, your mission is: go to Terra and recruit the lost operators back to Rhodes Island! The easiest way is to find them, then conquer them, and get them to come to Rhodes Island for you." I, a Stand user, an S-class hero, a Grand Magician, the savior of Azeroth... you're asking me... to chase girls? This book is also known as: "About the Time I Was Forced to Trick the Operators to Go to the Island." Well, how can something about the HR department be called a trick? Change that! [Scythe Little Red Riding Hood]

An unidentified alien arrives in this world, carrying the memories of a hapless time traveler. On a night with a streaking meteor, three previously unrelated souls merge into one. How does Aozaki Aoko Alter use…

[Option 1: Become King] [Option 2: Become the Protagonist of a Light Novel] [Option 3: Become the Blue-Eyes White Dragon] Looking at these three options, a true time traveler wouldn't hesitate at all. Is there even a need to choose? The chance to be human is there in every lifetime... but the chance to become a Blue-Eyes White Dragon might only come once in a lifetime! ...That day, Artoria, following the villagers up the mountain to quarry stone, could never have imagined that the white stone she brought down from the mountain would actually contain a blue-and-white baby dragon. "Awoo—" "Great, so cute." "Can I keep it?" ...PS: Author's sensitive mind warning.

【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.)