Lu Lingxi is bound to a quick transmigration System.
Her mission is to collect regret points from her targets.
World 1: Little Brother, Open the Door, It's Your Sister-in-Law (ABO): My Lover Is Actually My Sister-in-Law
World 2: The Major General's Mermaid Captive: You Killed My White Moonlight, So I'll Make You Suffer
World 3: My Unreasonable Stepbrother: My Stepbrother, Who Lives Under the Same Roof, Picks on Me at School Every Day
World 4: My Bankrupt Rival: The Person I Used to Bully Came Looking for Me After I Went Bankrupt
World 5: Reset Memories: The Main God vs. the System
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To save her friend, partner, and comrade-in-arms, Jiang Linchuan, Lu Lingxi signs an exorbitantly expensive contract with the quick transmigration bureau.
She will work for the bureau for the rest of her life.
In return, they will save him from his grave injuries.
In a gloomy dungeon, a mermaid cowers in a corner, trembling. Her pale cheeks are bloodless, and her fingertips unconsciously scrape at the ground.
Her fingers are stained with blood.
System 607 takes on a physical form and clasps her cold, soft hand, lightly brushing a fingertip across its back.
"!"
That gesture... Lu Lingxi's body stiffens. She raises her head. "Who are you, really?"
A heroine who's a seemingly innocent but actually scheming little fox vs. a hero who's a seemingly aloof but actually dependable System
Theme: Don't do things you'll regret