Fairy Tail: Collapsing Stars - Chapter 1 - Marriage

Time travel became a member of the Hakka family who beat the enemy. He is the twin brother of Yiermi, who is the odd one. He began to receive assassination training at the age of three, and began to perform missions at the age of six.

His hands were covered with blood, and his feet were full of bones. His legend began as a killer.

—

This is an unremarkable hunter fanfic.

- Description from novelbuddy

Before his death, he was the only sword cultivator in the whole world, who dedicated his entire life to the path of sword immortality.

When he opened his eyes again, the world had completely changed. He began to cultivate the path of sword immortality again, slaying the heavenly way, shattering the universe with his will, and achieving the realm of sword immortality!

- Description from Novelupdates

Qin Tian accidentally transmigrated into a sickly body, a body with broken Dantian that was unable to practice Qigong, in another world. Fortunately, God had mercy on him by giving him a level up system. Useless? That was him in the past. Not worrying about practicing Qigong, he was now able to kill Monsters to level up. Easy! Level up when killing Monsters; level up when killing people. An unbeatable sovereign of the clan in the eyes of other people, but in his eyes, he is a glittering big BOSS.

During her cultivation practice, Nie Yinzhi encountered a mishap and nearly fell into qi deviation. After emerging from seclusion, she discovered she could see floating subtitles above her head.From these danmu (bullet screen comments), she learned that she was merely a substitute supporting character in a novel.Everyone in her sect doted on and loved her only because her eyes resembled those of the beloved senior sister who had perished ten years ago.And in three days, that blind senior sister would return to the sect—Nie Yinzhi would have her core forcibly removed by her master, her eyes gouged out by her senior brother, and ultimately die alone.Armed with spoilers from the danmu, Nie Yinzhi set up a forbidden array, sacrificing her soul to summon the novel’s antagonist – the great Demon Lord.Covered in blood, amid everyone’s terrified gazes, she coldly smiled and said, “If that’s how it is, then none of you shall live!”The Demon Lord appeared slowly in his dark robes, reaching out to wipe blood from the corner of her mouth: “You’re so young, why harbor such deep resentment? If there are any misunderstandings, we can sit down for tea and talk things through. Why resort to violence?”Nie Yinzhi: “???”Is this the ruthless, evil Demon Lord everyone spoke of?![The Demon Lord says no with his mouth but his actions prove otherwise. Don’t worry, it’s not frustrating, feel free to dive in.]Gu Jiang: Today my wife is asking me to kill againNie Yinzhi: Today the Demon Lord is preaching virtue to me againCultivation World: Being persecuted again todayLaid-back retired veteran couch potato Demon Lord male lead VS grudge-holding can’t-take-any-grievance female lead[[Warning: As you can tell from the synopsis, the female lead isn’t designed to be morally good! She has character flaws! She’s not a perfect victim! She won’t wait until they actually remove her golden core and gouge out her eyes before fighting back! Proceed with caution if this bothers you!] ]