As of today, it's fiction. Time is a very complex concept in physics. Although there are theories that touch on the possibility of time - like aspects being manipulated, like in quantum physics with the idea of entanglement having some time - related implications. But these are far from creating a time machine. The idea of a time machine also goes against our common sense of causality, and there are no practical demonstrations or evidence to suggest it's a fact. So, for now, it's firmly in the world of fiction.
Chapter 237, "Top of the Three Lists! Truly Deserved!", is the clearest early answer because it turns Jiang Mingyu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with It seemed as if, believing the spilled water couldn't be recollected,...
Chapter 435, "A Skilled Housewife Can't Cook Without Rice", is the clearest early answer because the violence around Zhou Xu becomes final instead of hypothetical. It opens with The elderly dean looked at Zhao Lang with a tinge of regret.
Chapter 350, "The Male Lead Actually Came Out to Clear Jiang Li's Name?!", is the clearest early answer because it turns Clear Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The criticism on Weibo continued to ferment.
Chapter 438, "The Upper Stream is Mine, The Lower Stream is Yours", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, I'm sorry," Shang Shuyue squeezed out three words through clenched....
Chapter 154, "He Came, Bringing with Him the Bastard Game", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event. The chapter gives readers a real answer by opening on Hahaha, I'm dying of laughter, Lili, do you really have to be so...
Chapter 437, "A Gentleman's Revenge is Not Too Late Even After Ten Years!", is the clearest early answer because it turns Yu Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with [What's happening, why did a group of people suddenly show up and...
Chapter 460, "Saving People", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event.
Chapter 336, "He's Just a Charlatan!", is the clearest early answer because it turns Mrs's situation into a concrete plot event. The chapter turns that into something concrete by moving from Lady He kept mocking with relentless sarcasm.
Chapter 84, "Is it Just About Having Hands?", is the clearest early answer because it turns Princess Wen's situation into a concrete plot event. It opens with When the villagers tasted his curry beef one by one, their faces...
Chapter 195, "Woke Up and the Base Was Stolen?!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Jiang Yan was fully equipped and followed at the end of the team.