A Hentai System in the World of Danmachi - Chapter 163 - 162 - Luan is playing with Ais.

In a world where warriors and mages wield incredible power to battle monsters and conquer dungeons, Leon was just another hopeful teenager awaiting his awakening. At eighteen, he stepped forward to touch the Awakening Orb, dreaming of a legendary class—perhaps a powerful Mage or a fearsome Warrior.But fate had other plans.[You have awakened the F-Rank Class: Necromancer][Your subclass is: Zombie Lord]The world sneered. Necromancy was a taboo, a weak class fit for those who couldn't survive real combat. Zombies? Nothing more than mindless, slow-moving corpses. With no future in sight, Leon was cast aside as a failure.Until he actually used his ability.[Select Your Zombie Type]— Warrior Zombie— Mage Zombie— Healer ZombieUnlike traditional necromancers, Leon’s system let him create and customize zombies—giving them skills, equipping them with weapons, and even allowing them to evolve. With the right combination of magic, strategy, and firepower, his undead army could be unstoppable.Armed with a mana-powered magic gun, Leon fights alongside his growing legion of enhanced zombies, proving that an F-Rank class can become the most terrifying existence in the world.The dungeons will fall.The strong will kneel.And soon… the world will know the name Leon, The Zombie Lord

Lin Yuan took a ‘Gate to All Realms’ and traveled to the vast universe of the Star Sea.

The most powerful person here can destroy the starry river system with a snap of his finger, and tens of millions of light years are coming in a blink of an eye.

Lin Yuan, who has been reduced to the bottom, can only rely on the ‘Gate of All Realms’ and the bound talent ‘Heaven-defying Comprehension’ to travel through all realms and become stronger silently.

[You have incredible understanding, practice the Yi Jin Jing, and understand the ‘Yi Jin Jing, body exchanging blood and quenching the gods’]

[Your understanding is against the heavens, you understand the thunder in your palm, and understand the ‘Thunder Creation and Development Method’]

[Your understanding is contrary to heaven, watching the birth and death of the world, and realizing the ‘world in the palm of your hand’]

[Your understanding is contrary to the heavens, you have studied the art of incarnation outside the body, and realized the ‘Great Law of Self-Transformation’]

…

As he traveled back and forth again and again, Lin Yuan grew stronger endlessly, until… he was invincible in the world.

- Description from novelbuddy

Ye Xuan transmigrated back to when he was an infant cuddling in the embraces of his nine older sisters. He activated the God-tier Sign-in System.

[You are hugged by your eldest sister, who is the COO of a financial conglomerate. You signed in and obtained RMB100000000.]

[You are fed medicine by your second sister, who is crowned the God Hand. You signed in and acquired god-tier acupuncture skills.]

[You trained along with your third sister, who is a Martial Arts Grandmaster. You signed in and your overall physique improved.]

[You live-streamed with your fourth sister, who is the top news anchor in the country. You signed in and acquired extraordinary good looks.]

……

Ye Xuan could sign in daily!

After staying in the city and signing in for eight years, Ye Xuan had accumulated an astronomical amount of wealth and become a billionaire.

On his eighth birthday, his nine sisters were forced by the grand elder of their clan to get married. Just when everyone had lost hope of turning things around, Ye Xuan hopped down from his eldest sister’s embrace and said, “You’re marrying my sisters off against their wills. Have you consulted me about this?”

Sometime after ‘Gates’ appeared in this world, humanity was divided into two: [User] and [ordinary human beings] Lee-kyung was able to awaken into a user and choose a [Class]…but, in momentary misjudgement, chose to be a [Necromancer], the worst of all classes.

Lee-kyung, searching for the materials to evolve his skeletal servant, ‘Lackey,’ was barely able to participate in a high-level raid for [Tower of Command] Dungeon. In an accident, he falls down alone to uncover a hidden conspiracy.

Injured and desperate to survive, Lee-kyung called out to anyone…and reached a vengeful spirit. “Please, I’ll do anything….Please form a contract with me and save me!”

–-You’ll do anything?….

TW: Depictions of mental health