One Piece: I am Imu - Chapter 334: Securing the City of Sand

Mirian Castrella, a student in her final year of a magical academy, unexpectedly finds herself caught in a time loop and haunted by strange dreams of the Elder Gods. Her plan had been to become an artificer to support her struggling family, but when the Akana Praediar army betrays her country in a surprise attack, everything changes. Instead, she finds herself delving into the dark secrets of the world, mastering magic, finding allies, and uncovering a vast conspiracy. However, just because the time loop can save her life doesn’t mean it can save her from everything. Mirian must navigate a dangerous world changed by the magitech revolution. Her quest to save the world from the apocalypse will lead her to battle magi and beasts, into the unfathomable underground Labyrinth, across distant lands, and into forgotten ancient ruins. Only through becoming a master arcanist who understands the true nature of the world can Mirian hope to stop the apocalypse she relives through time and time again. If she fails, everything she loves will be lost. ‍ What to expect: - Slow burn power progression - A clever protagonist who changes as the story moves from arc to arc - Expansive world-building full of complexity and secrets - A focus on magic - Intrigue and spell-flinging fights - A rotating cast of characters in each arc - Starts slow, then picks up speed

A world where people awakened abilities called Skills to those who come of age. The protagonist, Awakened with three godly cheat skills, does he uses them and rise to an existence called a hero or becomes a person who only cares about his own life.

If mercy and kindness can't save the world, then this time, I choose violence. I was reborn in death, like sin under the blazing sun.——Ethan ColeHuff... What’s going on?There’s a flight attendant with a D-cup sleeping next to me!?Did I really get reborn!?Back to fifteen days before the zombie apocalypse game starts!?[Ding! Congratulations, lucky one! You’ve been granted a one-time chance to be reborn, along with a spatial storage ring!][Ding! Please choose: Join the humans or the zombies?]A cheat ability, and a storage ring!?If I choose to be human, I can stockpile supplies, hang out with different women in a safehouse... Isn’t this the perfect start for a post-apocalyptic hero?“So this time, I choose... zombies!”God: “Idiot!!! If I’d known, I would’ve given this rebirth chance to someone else!”

Huang Dan’s pain nerve is innately different from the ordinary people. A little tore in his skin can cause him to sweat all over his body painfully to the point of him unable to make a word out.

Somehow, he began to cross world, following Mr. System to do the tasks…

In the first world, Huang Dan realizes what it means to die painfully and to live to die again.

TL’s summary:
MC suddenly transmigrated and is bind to a system, requiring him to solve mysteries. Born with a higher degree of pain sensitivity, he met different people in the different worlds and learns what kind of emotion smiling is.

- Description from Novelupdates