Quick Transmigration: The Side Character Doesn't Play by the Rules

Quick Transmigration Stories, No Fixed Couple, Peaceful and Easygoing

Quick Transmigration as a Nobody: The First World Is an Online Romance, and the Male Lead Is Possessive

The heroine is a nobody, a little cupcake, and diligently follows the plot. The male and female leads attend the same university. The hero falls for the heroine after she sends him a voice message while they're chatting online. When she follows the plot and tries to break up with him, he shows a strong possessive streak.

Quick Transmigration: The Host Is Bound to a Passerby A System

(The female lead is drop-dead gorgeous), irresistible to both men and women, no romance.

High Combat Power, No Romance, Female Lead Adored by Women

A physically powerful, no-couple female lead who's adored by everyone. No putting down other female characters just to make her look good. The main male and female characters should have basic decency, well-grounded personalities, and sensible motivations. Any character can be a villain, but they must feel like real people, not impostors.

Looking for Quick Transmigration Series with No Romance (More or Less), a System, and a Male Protagonist

The protagonist travels to small worlds to save the main characters. In one plot, he enters the body of a ghost bride to protect a baby. In the end, he gives the baby his flesh to eat, then dies after being buried in yellow sand. I think all that remains is a red ribbon, which the baby's master ties around the baby.

I'm Out of Books! Looking for Quick Transmigration System Stories

I'd like to read something like Quick Transmigration: After Binding to the Male Supporting Character, the Hosts All Want to Win Me Over. Are there any stories where a System directly helps you win over the male lead? Something where you become the System for a male lead, male supporting character, or villain in different worlds.