Runeblade - Chapter 13 : Victory or Death

When Roland crossed Middle-earth with the Lord of the Rings system, Gandalf was organizing an expedition, the king under the mountain still did not return to his throne, the Hobbit’s adventure had not yet begun, and the world was still shrouded in shadows…

- Description from novelbuddy

Lady Dawn expected to die.After casting her soul to the wind, taking a one-in-a-million chance to escape the wretched dungeons of Taegrin Caelum, the once-caged songbird of the Asclepius wishes nothing more than to find her Hearth and warn them of the coming danger. Instead, she’s found herself a shade, anchored to a young man who knows far too much—and with far less hope than she’d started with.Toren Daen, for his part, only wanted to make it home safely. Now he’s in a world taken straight from the page, questioning what is real and what is fiction, and scrambling to make something worthwhile. And with his foresight, there’s only one way that Toren can see to keep this new world safe: prevent the descent of the Legacy. But those in power will not make it easy: Nico Sever is in a league of power all on his own, and Arthur Leywin bears the burden of Fate a continent away. In this familiar-yet-not world of mana, monsters, and looming deities, any misstep along the roads of Alacrya and the High Sovereign’s Dominion could lead to a Fate worse than death.But what is death to a phoenix? With a burning secret in his mana core, knowledge of the future, and a maelstrom of fears and questions, Toren might just survive to be more than what Lady Dawn expected him to be. He might just survive to waylay the encroaching tide of death in the proxy war between raging asura clans.More than all of that, he might just live.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

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