The Achievement Hunter Is Forced to Become Humanity's Beacon

In her previous life, the heroine played an online post-apocalyptic game, then transmigrated.

She has an online game System and is obsessed with achievements.

For example: [Save 1,000 people] [Kill 10,000 zombies] [Build a base]

And so on, with countless achievement quests.

There is a resurrection mechanic. (Since she loses experience, equipment, and supplies, and has to return to the previous map, she is careful not to die.)

So, in the eyes of many, the heroine is a selfless, wonderful person! They see her as a ray of light in the apocalypse (the light of their lives).

And so the heroine goes on adventure after adventure, eventually becoming a legendary figure recorded in the history books.

Ending: Achievements unlocked: [End the Apocalypse] [Build a New Era].

What the heroine doesn't know is:

She has traveled to the past of her own world. She is the leader she learned about in her textbooks, the one who [Built a New Era].

Theme: Stay grounded and keep the whole world in your heart.