DxD: Matsuda? - Chapter 84: House Warming?

In a world teetering on the brink of chaos, where eldritch gods peer into mortal realms and monsters stalk the land, Lu Yu finds himself moments away from a gruesome end as a sacrifice to a sinister deity. Just as the cold altar awaits him, a glimmer of hope emerges: he activates the Monster Editing System.With this arcane power, Lu Yu can extract materials from all things and fuse them to create unimaginable creatures. Each monster grants him a portion of its strength and a unique, terrifying skill. From that moment, Lu Yu embarks on a perilous game of wits and power against the ancient, malevolent gods.99 Demonic Eyes+ Cyclops Body + Primordial Chaos Stone = Chaos Evil Eye: its gaze alone spells death, obliterating all under the curse of its Mystic Death Stare.Angel’s Blood+ Nightmare’s Corpse = Holy Nightmare: a being that commands the dimensional ability Paradise Descent, fusing heaven and hell into an inescapable exile.Seed of the Dusk World+ Mutant Drake Egg = Endbringer Dragon: the avatar of apocalypse, wielding the Calamity Domain to usher in the end of all things.From the shadows, he crafts horrors beyond comprehension: Void Shadow Spider, Hundred-Armed Giant, Soul-Banshee, and Endbringer Dragon. Each creation shakes the fabric of reality itself. Even as his creations grow in power, they spiral further beyond mortal understanding, defying natural laws. The gods, once indifferent, now tremble as their monstrous rival rises.Can Lu Yu’s ingenuity and monstrous legion prevail in the deadly dance with gods? Or will the ancient, inscrutable powers crush him before his ultimate creation takes shape?The monsters are limitless, and even the gods dare not look away…

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

Killing a person in ten steps will never stop a thousand miles away!

The evil leader broke through the barrier of time and space and became a descendant of Chinese medicine.

An era in which traditional Chinese medicine is in decline and ineffective.

Medicine is declining

Budo is fading

humanity is sinking

Under the surface of the peaceful world of singing and dancing, there is another treacherous and unfathomable world.

Experts can cure diseases, and national players can save people’s hearts.

- Description from novelbuddy

The protagonist transmigrates into a novel and gains a system where they grow stronger by simply writing in a diary.July 7th, sunny: “The boss’s outfit is hideous again. Wouldn’t it be better to wear something cooler?”July 7th, evening: “I’m about to have my engagement called off. So excited! How should I act?”July 7th, evening: “Lin Qingyue, the female lead, is probably going to drown her sorrows in alcohol.”The protagonist thought it would be easy—just jot down daily musings, record life’s events, and earn rewards. All while playing the part of a villainous, bootlicking second-generation rich kid, moving along with the original plot.But unexpectedly, the female leads gain access to copies of the diary entries.One by one, they stop following the script, and the plot spirals completely out of control.July 10th: “The female boss is an idiot—no one would want her.”Soon after, the protagonist gets punished at work, all because they entered the office with their left foot first.