Supreme Casanova: Ultimate Harem System - Chapter 153: Unexpected Visitor.

Suzuki, an adult programmer, suddenly notices that he’s been thrown into a different world while wearing a casual clothes at level 1. He gained high levels and treasures after using the 3 times use-disposable-magic, Meteor Shower, at once. After that he intends to do different world “sightseeing tours”?

He meets 3 beast girls, beautiful purple and black haired sisters, and an eccentric blonde haired elf girl along with various people during his trip. Although there are occasional fighting with demons and demon lords, this is a heartwarming fantasy story at heart.

With the sudden announcement of the launch of the holographic virtual network, Chen Mo, a hacker, received a special commission to hack this system in a bid to halt advancement.

To complete his task, he enters GENESIS – the holographic virtual game touted as the most secure – to look for a way to hack it. In his search, he inevitably becomes a terrifying force to behold.

- Description from Novelupdates

1 drop of blood = 1-Up

Other people game overnight, I game overnight and bleed.

Ever since the dimensional storms descended upon Earth, numerous dimensional zones have appeared, bringing with them all kinds of dimensional creatures—Immortals, Buddhas, Devils, Angels, Elves, etc.

Yet, all these strange dimensional zones can turn into dungeon instances on my phone. Other people risk their lives adventuring, I spend all my time gaming.

Monsters drop dimensional crystals that boost stats, imbue new skills, and join me as Companion Beasts. These Companion Beasts fight alongside me or alone, augmenting me with their skills and strength. Rare monsters in real life? I’ll just restart the game with a drop of blood to grind it.

I really need a blood transfusion.

Tang Shaoyang, an orphan who dropped out of the middle school to fight on the street as he found out school was useless for a penniless orphan like him.

Tang Shaoyang dropped out of his school, fighting on the street, and made a name for himself. Berserker Tang from Youyouliucun.

Afterward, Dragon Wing triad recruited him and everything was good for him. Even though the public deemed him as a tumor of society, Tang Shaoyang was having a decent life. Until one day, everything changed as an absurd and strange game started.

[… Game starts! Stage one: Survival for The Fittest!]

After the game started, zombies appeared out of nowhere.