MTL - A World Worth Protecting - Chapter 6 Big trouble

In a future timeline, the earth was visited by a species known as the Slarkovs.
Having lost their home planet and in search of a new one, earth was the next habitable planet for them.

Humans and Slarkovs made a deal with each other in return for the Slarkovs living on earth.
The Slarkovs traded their technology and knowledge for a new home.
They were similar to humans except for some of them who had slight differences so fitting into the society wasn't a problem.
Over the years Slarkovs and humans began to mate with one another and reproduce offsprings.
This in turn created a new species known as the mixed-blood.
Centuries later mixedbloods could tap into their bloodline and perform unimaginable feats.

Gustav born into an age where bloodline determines everything, struggles to fit with a useless bloodline.
His bloodline only grants him the ability to change his hair color, destroying his hopes and dreams for a great future.
His fate is turned around when an unexpected situation leads to him finding a system that grants him the power to unlock and upgrade bloodlines by completing quests but he's baffled by two quests with a five-year deadline. Success will grant him unimaginable rewards...
But only one thing awaits him if he fails... Death!

Follow Gustav on his interesting journey filled with unprecedented adventures, danger and death, maybe?

There are times when you’ll still never be good enough no matter how hard you try.

Born with a frail twin sister, Li Caiyi gives most of her time to take care of Li Chunhua. Her parents and older brother trust her to take care of her sister, yet Li Caiyi can’t help but feel the disparity in treatment and affection given to both of them.

In her whole life, she has never become anyone’s first priority. Not in the heart of her family, and especially not in the heart of her childhood friend, the Young Master of Meng family, Meng Renshu.

When Li Caiyi became Meng Renshu’s wife, Li Caiyi thought she could finally become someone’s first priority, but everything fell apart in just three years.

She decides to let everything go. Then she meets Shen Qiang in the most unexpected place. No one wants to accompany her in her life, yet this stranger offers to accompany her in death.

“Do you want to jump together?”

When she opened her eyes, Li Caiyi had gone back to her high school times.

This time, she won’t make the wrong choice again.

But where can she find Shen Qiang?!

After the divorce, the ex-wife disappeared for four years and unexpectedly gave birth to a pair of twins! Upon reuniting, Third Young Master Shen continuously pressured her into marriage, but the ex-wife's heart was tightly shut. The soft and adorable daughter was worried, saying: “Uncle Shen, why don't you kidnap me and threaten my mom to marry you?” Clearly, she is his biological daughter. The arrogant son, on the other hand, specializes in ruining plans, revealing someone’s embarrassing photos: “If you keep pestering my mom, I’ll send this to the parent group!” He's clearly out to get his dad!

This is the story where Urahara Kisuke died after Nel failed to save him inside Askin’s Gift Ball Delux and reincarnated in the world of DxD.

I am not sure if I can capture Urahara’s character properly so I apologize in advance if you are not satisfied.

Also, English is not my native language.

I don’t own any of the characters from the canon.