No Mercy Under My Blade [Quick Transmigration]

When Bi Ren woke up on the road to exile, she was being set up. Not only had her in-laws "sacrificed" her, but she'd nearly lost her life. Bi Ren sighed. What could she do? Of course, kill them all. One strike, instant death, painless passage to the next world. Bi Ren thought she truly lived up to her name: a merciful, softhearted goddess. A zombie killer from the apocalypse had successfully entered an ancient world in chaos. And a rather unreliable System, codenamed "Million," came along for the ride. The System had only one requirement for Bi Ren: stay alive. It also warned her not to show mercy to anyone. Bi Ren: System, you really know me. I'm a kind person who can't bear to see anyone suffer. By the way, what does "Million" mean? System: It means life has a million possibilities. Bi Ren: Got it. On the first day, she killed two people by the river. On the second day, she sent two more to a watery grave, so they could go play mahjong together. On the third day, at night... one family's side chamber was awash in blood. On the fourth day, she joined forces with the escort team and slaughtered half a village. Half a month later, she had killed everyone on a mountain. System: Host, your progress is too fast. You can take a break and stretch things out a little. Bi Ren: No. This is just the beginning. Bi Ren traveled through several worlds. To sum it up: Husband dies - son-in-law dies - brother-in-law dies - left all alone System: You can't kill off all the supporting characters like this! What a waste! Bi Ren: Sigh, they always make me do it. It's exhausting. Through killing, she kept the Bi family genealogy going for more than two thousand years without a break. Later generations assessed the women of the Bi family this way: Every generation produces heroes, and every generation produces poison widows. By the time Bi Ren finally finished her quick transmigration missions, she had directly or indirectly killed a million people. System: ??? Host, did you misunderstand what "Million" means?! Bi Ren: From now on, I won't take jobs for less than a million. Thanks. *Reading Guide: Please note the content warnings* 1. The protagonist is the type to keep killing until the day she dies. She is not a good person in the traditional sense. If you are easily moved, compassionate, or prone to wrestling with humanitarian principles, please give this a miss. 2. She leaves each small world after spending some time there. "Keep living and killing until the day she dies" means she kills until she leaves that world, not that she actually lives to a hundred. 3. No CP. If she has a husband or someone else, it's for the plot, not romance. 4. In the ancient settings, the protagonist does not ascend the throne. Volume One: [Reshuffle: A World in Chaos] Ancient fictional setting, rival warlords vie for supremacy Volume Two: [Restore Order: The Court] Ancient fictional setting, three princes vie for the throne Volume Three: [Sniper: Family Feud] Modern fictional setting, a wealthy family fights over its inheritance Volume Four: [Spread: Doomsday Reboot] Zombies attack; fight your way out Volume Five: [Closed Loop: A New World] Avenge old wrongs and begin a new journey Five worlds are planned for now, though the number or selection may change depending on how things go. ~If you like it, remember to add it to your favorites, dear readers. Heart~ Theme: Live in the present and press forward fearlessly