MTL - For Thousands of Years, My Weakest Brother Has Become a Demon King (1000 Years Later, Even My Weakest Follower Has Become A Demon King) - ~ Didn't die, didn't run away

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.

Magic finally reached planet earth, but it was not like we expected. It came in the form of mystic energy!

After the age of awakening, all living things finally entered the path of evolution.

Mystic Beasts invaded earth, destroying the world as we knew it, but we survived as we finally gained the ability to utilize the energy that the beasts came with.

Mystic Warriors were born, and humanity finally found a moment of reprieve, but the Mystic Beasts were still winning.

Rex Vector, an apparently mystic energy-deficient sword genius who lost everything to the war turned out to be the last inheritor of an Ancient Bloodline.

On fully awakening his bloodline he was granted a system and his whole life changed for the better.

Life held much more in store for him though as the contents of his first system mission revealed a reality to him that he wasn’t sure he wanted to accept.

[You are hungry!]

[You must drink human blood within 24 hours!]

[Penalty for mission failure: Death!]

(Popular female lead + Pretending to be weak to beat the strong + Fast-paced + Slightly sour then sweet romance + 1 male lead and 1 female lead + No face-slapping + Female lead and female second lead are good friends)

Jiang Yan was originally a scheming, sweet girl, but the system told her that she was actually a vicious female second lead who would never be loved.

Jiang Yan prepared herself to become a lonely beauty, but the characters in this mission world did not act according to the plot!

Jiang Yan wondered: “How did he agree to my pursuit?”

“Wasn’t he supposed to take the initiative to break up with me?”

“Why doesn’t he dislike gold-digging women and even gives me money to be with him?”

The vicious system crashed: “The characters of this world are out of control!”

1. Fake rich young miss vicious female second lead ✔ (Extra ✔)

2. Attention-seeking, money-crazy internet celebrity vicious female second lead ✔ (Extra ✔)

3. Pampered little princess vicious female second lead ✔ (Extra ✔)

4. Poor gold-digger vicious female second lead ✔ (Extra ✔)

5. Online dating scammer vicious female second lead ✔

6. Forcefully snatching sugar daddy vicious female second lead ✔

7. Ex-national sweetheart vicious female second lead ✔

8. Frail and delicate young miss vicious female second lead ✔

9. Childhood sweethearts ✔

10. Vampire little count vicious female second lead ✔

11. Blind young miss vicious female second lead ✔

…To be continued

Mainly lighthearted and heartwarming