(Just to clarify, this story is mainly based on the American TV series The Walking Dead. There will be many original plot elements to make up for any shortcomings. I will try my best to avoid being out of character. I hope you enjoy reading it.)

There are many regrets in The Walking Dead:

Like Moor who lost his hand on the rooftop but was willing to assassinate the governor alone for his brother Daryl, ultimately dying in the process;

Beth, so strong and kind, died at the hands of the hypocritical Dawn;

Glenn, kind, brave, and selfless, dedicated himself to the team, walking a tightrope, yet died a death as light as a feather at Negan's hands.

In this world where Mourning Grimes is a walking dead, everything will have a happy ending.