My name is Lin Yu, an aspiring young man transported by a truck to a world of immortal cultivation. I became a menial disciple of a sect and gained access to a heaven-defying sign-in system! Day 1 sign-in: Invincible cultivation! Day 2 sign-in: Top-tier immortal technique - The Immortal Scripture! Day 3 sign-in: Immortal Sword - The Immortal Executioner! Day 4 sign-in: Max-level alchemy! Day 5 sign-in: Heaven-Slaying Art! ...Invincible from the start. Always invincible, always awesome!

Zhong Changsheng travels through the martial arts world of the Nine Provinces and becomes a lowly jailer in the Heavenly Prison of the Great Zhou Dynasty.

In this terrifying Heavenly Prison that suppresses all kinds of peerless ferocious demons and monster giants, Zhong Changsheng, a mere jailer, can only tremble in fear.

Fortunately, the cause-and-effect sign-in system was awakened. In addition to signing in at important locations, you can also sign in on prisoners and get various rewards!

"Ding! Successfully checked in at the Heavenly Prison and obtained the supreme cultivation technique 'Divine Elephant Suppressing Prison Technique'. It uses Qi to guide the spirit, and the spirit to form images, condensing 84,000 ancient divine elephants to suppress all the demons of hell and roar down the sun, moon and stars!"

"Ding! Successfully checked in on the True Demon Sect Master and obtained the Nine Hells Demon Blade Scripture. The Nine Hells Demon Blade gathers all the evil energy in the world and can slay immortals and gods when it is drawn!"

"Ding! Successfully checked in on the Holy Maiden of the Hehuan Heavenly Sect and obtained the Yin-Yang Hehuan Heavenly Technique. The Yin and Yang harmonize, and the universe complements each other, increasing your martial arts cultivation by a thousand years..."

...

In the 35,800th year of the Great Zhou Dynasty, the feudal lords rebelled, and demons breached the capital. A peerless demon king attacked the Heavenly Prison, seeking to rescue the demons suppressed within.

"Who dares to cause trouble in the Heavenly Prison and disturb my peace?!"

Within the Heavenly Prison, Zhong Changsheng, who had been signing in for hundreds of years, opened his eyes. A peerless blade of light cleaved through the mortal realm. At the same time, the phantom of an ancient divine elephant, towering to the heavens and standing on the boundless purgatory, appeared and crushed the Demon King with a single step!

The world was shaken!

[Immortal Body] + [Daily Login System] + [Rinnegan] + [Naruto Across Worlds] + [Invincible from the Start]

Shen Yueyou's soul travels to the battlefield of Kikyo Mountain in Naruto. On the verge of death, he activates the God-level Sign-in System and starts as a legend!

[Konoha Memorial Monument, Sign-in: Perfect Sage Body + Eternal Kaleidoscope!]

[Valley of the End, Sign-in: Wood Release: True Several Thousand Hands!]

[At the Omni-King's Palace, sign in: The Law of Cosmic Erasure/Creation!]

The Nine-Tails' rampage? He held down the berserk Nine-Tails with one hand: "Behave yourself, don't disturb Kushina's rest."

The Fourth Shinobi World War? Black Zetsu: "The Eye of the Moon, which I've planned for a thousand years, has become his graduation ceremony for his students?!"

Minato Namikaze: "People call me the Golden Flash, but Yu is the only sun that illuminates the entire ninja world."

Ōtsutsuki Momoshiki: "Impossible! How could a mere inferior being possess divine power that surpasses even ours?!"

When the ninja world bows down, all the myriad realms are within its sign-in scope. This is a story that begins with Naruto, crushes all others, rewrites all tragedies into perfect endings, and ultimately becomes a legend of sign-in across the multiverse.

Brothers, please support my new book! I'll write 6,000 to 8,000 words a day.

[One extra chapter for every five-star review]

Liu Qingsong transmigrated to the immortal realm, riding a golden dragon, dominating the world and becoming invincible.

You think saving the world has to be a hero? What a joke! I was just casually stepping on an ant at my feet.

You say fate is predetermined, everything is preordained? Sorry, I transcend the Three Realms and am not bound by the Five Elements.

Lin Fan transmigrated to the world of Food Wars and grew up in an orphanage. He awakened the [Little Chef God System], silently signing in for ten years to unlock all its contents. All items in the system shop could be redeemed with points. As he faced the transition to higher education, Lin Fan embarked on his journey to the Totsuki Culinary Academy. He was short on points to redeem legendary cooking utensils... Lin Fan: "Eizan-kun, I'm a little short on cash lately, let's have a Food War, the price is one hundred million!" Eizan Etsuya: "How did I become your ATM?" Lin Fan: "Mito-kun, I told you you can't learn the Fierce Bull Azure Dragon Slash, stop bothering me!" Mito Ikumi: "I've already become your apprentice, whether you agree or not!" Nakiri Erina: "This dish is so delicious, can you make it again for me?" Midnight Chef: "That guy named Lin Fan, his cooking skills are too amazing???"

Li Yuan transmigrated to a fantasy world fraught with danger. This fantasy world has countless realms, holy races of the heavens, true immortals of the immortal realm, and evil gods of the cosmos. The human race is merely struggling to survive in the vast universe until Li Yuan arrives!

Sign in for the first month and become a martial arts master!

Sign in for the second month, become a martial arts grandmaster, and change the dynasty!

After four months of signing in, I have become a martial arts saint and suppressed the world-destroying monster!

Sign in for the sixth month and become a Martial Immortal, sweeping away the Void Immortals of the Heavenly Realm!

After ten months of signing in, I have achieved the title of Martial Immortal Emperor, and all the emperors of the heavens and universes revere me!

Sign in for a year, become a true martial arts god, and roam freely in any time and space!