MTL - Great Tang Broom Star - ~ A few questions about the plot

The gong has loved the shou for a long time already but he does not dare to confess his feelings. Without any better option, he joined forces with a system to kidnap the shou, dragging him through many quick transmigration world in an attempt to capture him. Afterwards…

Shou: This bed partner is very good. Can develop into a long term bed partner.

Gong: Why is it just a bed partner? Let’s agree to love each other!

Ye Jun Ge: Did you take your medicine?

System 004: …QAQ

- Description from Novelupdates

The end of the world has come, the world order is in chaos, and human morality has declined.Li Yu, a cold man, was reborn and won a 30-million bonus at the start of his new life. He built a god-level base and hoarded resources.While others were struggling on the brink of starvation to death, Li Yu was enjoying himself on the rooftop, having a barbecue and drinking beer.

In this world, orphans or just anyone without any hope for this world can apply to become a “walking target”. Their sole purpose is to be a practicing dummy for the students of the sect who train to become “Demon Hunters”. These students need “walking targets” to test their training on living, walking beings of flesh and blood.
In exchange, they will be provided with food & shelter.
Their existence value is lower than a slave, but if they manage to survive a few years they can receive a life long pension.

Xiao Han is such a “walking target”. One time he witnessed a powerful Demon Hunter disposing a demon. When the demon died, a fragment of the demon that managed to escape entered Xiao Han’s heart. No one saw that, and even Xiao Han himself only felt some discomfort for an instant.

But that thing in his heart soon gave Xiao Han visions, and the first one is of a cultivation method which allows Xiao Han to absorb damage to enhance his body. A perfect cultivation method for a “walking target”.

- Description from Novelupdates

“I DON'T WANT TO DIE A SECOND TIME!!!”___Ellen Summers' life turns upside down after a freak accident lands her in a strange world. She wakes up as Ellen Winters, the antagonist in an online novel she once read. No longer an orphan and poor, she now has a loving father and finds herself surrounded by wealth.But in the novel, Ellen Winters meets a tragic fate, dying at the end after being abandoned by her husband, Mason Coldwell, who still harbors feelings for his ex-girlfriend, Aubrey. Determined to escape this cruel destiny, Ellen decides to rewrite her story. She fights to keep Mason and Aubrey apart, knowing the heartbreaking consequences that await if they reunite.However, as she tries to change her fate, Ellen unexpectedly begins to fall for Mason. Just as she starts to believe in a future together, an unforeseen terror disrupts her plans. Ellen wonders if her attempts to alter the storyline have unleashed something darker.Can Ellen truly change the course of fate and find happiness with Mason, or will the shadows of the original story prove too powerful to overcome? And will they survive the terrors that threaten to engulf them?