The protagonist, Qingxuan, is a hardcore novel enthusiast. One day, he transmigrates to the prehistoric world and becomes a chaotic green lotus seed. After taking human form on Penglai Immortal Island, he uses the Three Immortal Islands as his base, takes in nine disciples, and begins his path to domination, attacking all three major religions and kicking down the Heavenly Court.

I had just transformed into human form when Yunxiao, one of the Three Immortal Maidens of Sanxiao, barged into my cave? And she even tried to steal my innate spiritual treasure?!

Lin Fan was stunned, but luckily the [Goddess Best Friend Check-in System] was activated in time!

Can you obtain Chaos Treasures and Dao Enlightenment by becoming best friends with the goddess and checking in by her side? The higher the favorability rating, the more incredible the rewards?

"Ding! Signing in next to Yunxiao, reward: Chaos Lotus Platform!"

Seeing her brother Zhao Gongming arrive with murderous intent, Lin Fan stepped forward, shielding Yunxiao behind him, and sneered domineeringly: "You dare to mess with my best friend?"

With a single blow, Quasi-Saint Zhao Gongming was severely injured on the spot! The primordial world trembled!

From then on, the style of the prehistoric world completely went astray!

"Ding! Sign in with Chang'e at the Moon Palace and receive the Sun-Shooting Divine Bow as a reward!"

"Ding! Sign in by helping Nuwa mold clay, reward: Creation Jade Disc Fragment!"

"Ding! Sign-in for Houtu's reincarnation event, reward: Pangu's essence blood!"

While the Three Pure Ones were still arguing over magical treasures, and the Lich Kings were still fighting over territory, Lin Fan had already led his group of goddess-like girlfriends to sweep across various secret realms and plunder endless opportunities!

Houtu, Xihe, Yaochi Jinmu... one after another, these aloof goddesses have become his "best friends"!

Until one day, Lin Fan was surrounded by stunningly beautiful goddesses whose beauty could shake the primordial world. He looked up at the Zixiao Palace and smiled faintly.

"Ancestor Hongjun, you have schemed for countless ages, but did you ever foresee that my best friend... could overturn your Heavenly Dao?"

Cheng Yan transmigrated to the Douluo Continent with a system that allows him to designate others to bear the side effects of whatever he does. What? This martial soul can bring the dead back to life, but to practice it, one must first… No problem, I'll handle the miraculous healing, the rest is up to Dai Mubai! What? This soul skill can greatly increase one's charm, but the side effect is becoming Tang San? No problem, I'll attract Ning Rongrong and Zhu Zhuqing to confess their feelings, Tang San will bear the side effects, since he's already Tang San! What? This soul bone can make one stronger, but it will ignite one's desires? It's okay, Ma Hongjun was crippled for having evil intentions towards Liu Erlong, it's not like I…

[Absorbing and evolving, invincible, system, decisive in killing, transforms into a white-haired catgirl, no romantic pairing, the entire story is primarily in cat form]

Evolution: I ate myself into a catgirl.

Xu Feng unexpectedly transmigrated to the world of cultivation.

It became a little civet cat.

At the start, it almost became fish food.

In this world where demons roam freely and immortals reign supreme, it felt that the future was bleak.

Fortunately, I obtained the system panel, which allows me to evolve infinitely by devouring others.

Since that's the case.

Xu Feng was the first to devour the fish demon that was preparing to rebel against the Heavenly Gang.

Do roadside weeds give evolution points?

eat!

...

Are the mice in the valley plump and delicious?

Eat, eat, eat!

...

Elixirs and miraculous herbs?

Let's keep eating!

...

Through his diligent absorption of the nutrients, Xu Feng finally reached the Golden Core stage.

"But someone tell me! Why did I turn into a catgirl???"

[Gender-Changing Cookie] [Multi-Purpose Tent] [Bamboo Dragonfly] [Adaptation Lamp] Lynn's four-dimensional garbage bag always manages to unearth many magical secret items, even if they're just a bunch of old stuff, they still bring help and joy. The helpful Lynn arrives at Privet Drive and encounters Harry Potter, who is struggling. To help him ease the strained relationship with his aunt and uncle, he gives Harry a magical cookie that completely changes his life. And when Lynn arrives at the magical Hogwarts School of Witchcraft and Wizardry, what changes will he bring to the magical world? Welcome to—Harry Potter and her best friend Lynn's Hogwarts daily life; Severus Snape's new life after shaving his greasy hair; Voldemort realizing he may have misjudged the object of his prophecy...

(The first thirty-odd chapters are more slice-of-life, and the female lead's storyline ends there. After entering the elite training camp, things take off and get better!)

Lin Yan transmigrated to the world of "Swallowed Star" and obtained a treasure called "Yan Dao Disc" with deduction and analysis functions.

then........

Deducing basic sword techniques → One slash to slay the god of the wilderness

Deducing basic body movements → One step, one universe

Deducing defensive secrets → Counter-attack leads to enemy's self-destruction

...

Many years later.

"Being invincible is so lonely!" Lin Yan looked at Yuan and the other Hunyuan lords, then at the Hunyuan progenitors, and couldn't help but sigh.

I've read many novels about the prehistoric era, but none of them were what I wanted, so I decided to write one myself. Mainly, I just wanted to test my inspiration; whether it's good or bad doesn't matter, as long as I'm having fun.

Unexpectedly transported to the world of Fairy Tail, activating the gacha system.

You can select characters who have died in anime to receive.

Thus, one can utilize the power of anime characters.

Thus, Roger, Whitebeard, Hashirama Senju, Madara Uchiha, ...

The power of the strong characters who died in various anime is displayed in this world.

Queen Medusa: "Who are you?" Wu Tian: "My name is Wu Tian, ​​and I am the guardian spirit of the Snake-People Queens for generations!" Queen Medusa: "Then how did you get in?" Wu Tian: "Whoosh—like a rocket, I came in!"

Multiple female protagonists + invincible + main system of daily check-in with a secondary system of return + protagonist's sixth-hand behavior

The protagonist, Hoy, was originally an ordinary Meituan deliveryman on Earth, wearing a yellow robe. During one delivery, he had a close encounter with a car traveling in the wrong direction at high speed. When he woke up, he found himself transmigrated into a Marvel universe—a universe he didn't know the exact number from—thus beginning his invincible journey.