Toaru Kagaku no Railgun SS - Volume 1, Chapter 7

Ning Shi, a man from Saturn, accidentally downloaded a game on his phone called the Age of All.

“Beep! Clone successfully created!”

Ning Shi received a clone in the game. Whenever his clone got stronger, his real self would get stronger as well.

“Your clone has trained in the training room for 12 hours. Vitality +1, Mentality +1.”

“Your clone has slain the Earth-Dragon. You have received the Earth-Dragon Bloodline.”

“Your clone has consumed the Charm Fruit. Beauty +10.”

His clone started to conquer the game, created his own faction, and left a legacy.

“Your clone has successfully won the heart of Alice the Rose Duchess. Alice will be arriving in your world shortly. Please be mindful of your surroundings.”

From ancient times to the present, it is rumored that there is a spiritual realm in the world.

Regarding the theory of the spiritual realm, celebrities and scholars in the past dynasties have different opinions. The poem records:

“From Qi to Tang, Zishan?

“The spiritual realm is indescribable, and it is difficult to ask for forgiveness for ghost workers.”

- Description from novelbuddy

After a shocking reincarnation, our hero opens her eyes to a new (and messy) world the last thing she remembers is reading Lady Viper’s Vow, a dark fantasy novel about a cruel, misunderstood villainess and her path of doom. But when our protagonist finds herself reborn right in the heart of an attack, she’s moments away from a second, way-too-soon death. Just as she’s about to face the end, a mysterious “system” pops up with a single mission: Level Up or Die Trying. It’s bossy, snarky, and her new best friend. As she levels up into a borderline-cheater powerhouse, she discovers her fate isn’t to be a hero, a princess, or even a sorceress, but to protect the one person no one ever expected her to side with: the villainess herself.

One day, I woke up only find out that I’d become a Demon Lord, an individual responsible for protecting a dungeon. The world I’d been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeon’s defenses in hopes of living another day—or at least that was what I’d thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.