(Spoilers + Time Travel + Multiple Realms, a spoiler-heavy variant, proceed with caution if you dislike spoilers!)

Having transmigrated to the world of the Starry Sky Railway, Su Bai obtained the Super Dimensional Auction House, which allows people from all over the world to participate in auctions.

Among his auction items were many precious treasures, but the most precious were the fates of his guests.

Black Tower: "Huh?! You're saying the machine head is going to die, killed by the Iron Tomb of the Annihilation Lord?"

Alicia: "Is this our final ending? It really is a romantic story♪"

Tianli: "Me, knock? My men have all rebelled?"

Aizen: "The universe is so vast, yet my eyes are only focused on the Hogyoku. That's far too narrow-minded."

Luo Ji: "Is this a trap set by the Three-Body Problem? Huh, what the heck is this two-dimensional foil?"

Thanos: "Star God? Is he strong? How does he compare to the Infinity Gauntlet? Oh, and you even have Infinity Stones to contend with?"

Batman: "There's a Kryptonite auction? I'll take it..."

Feng Baobao: "The rat talisman I filmed is so much fun... but it's also very expensive!"

Su Bai: "You all say my auction items are ridiculously expensive, but who knows how hard I worked to find them!"

Luo Zhen traveled to the civilization before Honkai Impact 3rd. Being supported by Mobius, he thought he would just live a life of idleness and wait for death, and die in the embrace of the cocoon of the end. Unexpectedly, he obtained a golden finger and got the red A spirit base at the beginning.

As long as you accept commissions from people in different worlds, you can get different rewards.

[Resurrection of the Dead], [Human Emperor Banner], [Avatar World], [Magnetic Field Rotation]...

Xilin: Please revive Cecilia, I will do anything.

Bengtie Laoyang: Are you saying that there's a world out there where Otto is still alive? It's time for him to see the stars shatter.

Mei Raiden: Quack, power, come out to me!

Sunday: You mean, you can help me create a perfect paradise?

Emiya Kiritsugu: Can I really save the world by becoming a magical girl?

Tallulah: Damn it, am I really not as feminine as Black Snake? Please guide me!

[Time travel + invincibility + multiple female protagonists + abstraction + male protagonist can dress up as a woman + one-time transformation, only once, will change back in one chapter] Do not enter if you don't like it

He traveled through time and space, becoming a captain drifting through the vast ocean of Honkai Impact 3rd, achieving a perfect ending and living a happy life. However, the belated system brought him back to a time before the main storyline even began, when the three little ones were still fighting for survival in Changkong City.

"It's a second time travel, so why did you lose all my clothes when you teleported?"

"What do you mean you only got the right to use the Divine Key? This Divine Key isn't on my ship. I stole it from its original owner and have to return it after use."

"What the hell is Theresa Killer? How could I possibly have such a talent?"

The introduction is weak, please read the main text.

[Invincible + Shura Field] + [Late Infinite Flow]

Kelsey: "There are too many tragedies on this earth. We can't save everyone, but we can save ourselves."

Huang Cheng took out the Originium recovery potion.

After a moment of silence.

Kelsey: "There are still many conflicts on this land that we cannot resolve. Not everyone can live in peace."

Huang Cheng took out a button with a danger symbol on it, which represented nuclear peace.

Kelsey: “6”

My name is Luo Chen, and I traveled through time.

That's right, I was just an ordinary Hyperion deck cleaner. But why did I end up in the world of Honkai Impact 3rd? I can live with these familiar girls, but is this really the Honkai Impact 3rd I know? How could this be so outrageous!

I, the Healing Hero, travel infinitely.

[Imitate] the skills of the strong, [improve] my own body, and [degrade] the enemies I touch.

The ordinary nurse who seems to have no fighting power can [restore] time and even the world. Because she suffers from analgesia, she is immune to all the pain caused by side effects. She transforms into a stick hero and starts a pleasant journey in the second dimension.

"As long as I replenish magic, I can instill experience into my harem, right?"

"What if I can upgrade my superpowers after dating?"

The fantasy hand is actually me.

(The world I have traveled through: "A Certain Magical Index" x "A Certain Scientific Railgun" ing)

Completed: "Studying Medicine Can't Save the Second Dimension", "Soman: The Plunder of All Things", and the Black Light Trilogy, please watch with caution~

(This book is also known as Collapse, I Want to Go Home I’m Not a Succubus)

(Don't give me so many ties when I want to go home!)

(Many women, possible gender reassignment of the original characters)

You Yun accidentally traveled to the civilization before Honkai Impact 3rd and had to cling to others desperately in order to survive.

Mei: "Is this the reason why you have such unclear relationships with others?"

Jiang Lianqiu travels to a seemingly normal, yet infuriatingly saturated world of daily comics, inheriting the only remaining, long-ruined, uninhabited starport from a runaway mecha-servant civilization. Though his body has regressed to infantile form, he's well-served by his impeccable maid, Miss Belfast. He encounters his childhood sweetheart, Eriri, and his sworn enemy, Kasumigaoka Utaha. And what's even more remarkable: at the moment Jiang Lianqiu reaches fifteen, he awakens a miraculous gift, allowing him to fully connect with the five senses of the daughters of genius from different worlds. Sushang: The children of the Immortal Ship are so noble! I'm not afraid of being seen bathing by you! Hoshimi Miyabi: Yanagi, I'm undergoing special training to prevent my body from being controlled by a member of the opposite sex from another world. Kocho Kanae: Could you please be gentle with me, Aki-kun? I just finished my battle with Douma, and I'm feeling pretty shaky. Aqua: Explain! What do you mean by "you're not interested in this goddess?" Later, the number of people communicating at the same time was no longer limited to two people, but a group of people were connected at the same time. When those online discovered that they were in different worlds, they were in big trouble...

At the annual Tianming Annual Meeting, many Valkyries were discussing who would be the strongest Valkyrie of the year as voted by the bigwigs of Tianming.

"The probability of Lady Yulandel being the one is very high. After all, she is the strongest Valkyrie in the history of our destiny."

"It's not impossible, Lady Theresa, right?"

"Could it be Lady Rita?"

"Wow, who is Ye Chu?"

(Multiple female protagonists, no stallions, no ooc, slight secondary settings)

Awakening from a dream, traveling to the pre-collapse civilization, you start out like a monkey trapped under the ruins and unable to move? Without relying on the system, you are ranked among the fire-chasing heroes, the inscription of [Divine Shadow]!

Kevin: "Regardless of the ideals of all living beings, regardless of the survival of civilization, this time, I must save him!"

Alicia: "This time... I must convey my feelings to him, and will not... let him leave me again."

Abonya: "Fate has made him fall into the nightmare of eternal calamity alone in the future. This time, I will not let him repeat the same mistake."

...

Zhu Yufeng: "This time, I will not let the pain of the past happen again. Even if I walk alone in the long night, I will fulfill my promise to her! Humanity will definitely defeat the collapse!"

This is a story about a boy who has nothing and becomes a savior hero, and it is also the story of all the heroes saving this lonely traveler.