Toaru Majutsu no Index: New Testament - Volume 14, Chapter 2: Freeloaders Tend to Grow in Number - Cannibalization.

People are inevitably troubled all their life by the things they couldn’t have when they were young, but if you were driving a Bentley in your youth, life would be like playing a game... ... ... In this era of information explosion, the struggles of ordinary people are like being placed under the spotlight, turning into monkey shows for entertainment displayed before everyone... However, while some people are watching for fun, even more are looking in a mirror... Gu Heng, who was pulled out of the mire by the system, began to experience the thrill of indulgence.

I reincarnated as Luna, a supporting character who is accused of ruining the heroine and hero’s relationship, and is mu*dered. I’m not interested in someone else’s man, but the heroine’s friends bully me every day. “Why are you trying to get close to someone who’s already taken?” “That’s right, please stop! Why are you doing this?” “Stop doing such terrible things!” So Luna decides to announce it in front of everyone. “I don’t want someone like Fersen even if you beg me to take him so stop bothering me. I’d rather date Anthes Vincent, who’s rumored to be insane.” And soon she meets someone who she never expected to meet…… “I heard you have an interest in me? The truth is, I do too. Is it a coincidence?”

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!]

Rebirth in 2009, but this rebirth posture seems a bit wrong.

In this life, the family is wealthy, Wang Ye is addicted to the Internet, and can stay up all night the day before the college entrance examination.

Helpless, Father Wang decided to send Wang Ye to serve as a soldier in the army to quit Internet addiction.

two years later…

When Dad Wang made a video call with his son and was about to ask him when he would be discharged from the army and come back to inherit the family business.

Wang Ye, who was dressed in the uniform of an officer, directly surprised Father Wang.

“Dad, I’m going to be a general in the army all the time, so what, in terms of family business, why don’t you and mom consider having another one?”

……

- Description from novelbuddy